Lojpur, Vesna

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  • Lojpur, Vesna (27)

Author's Bibliography

Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity

Lojpur, Vesna; Krstić, Jelena; Kačarević-Popović, Zorica; Filipović, Nenad; Validžić, Ivana

(Springer, 2018)

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Krstić, Jelena
AU  - Kačarević-Popović, Zorica
AU  - Filipović, Nenad
AU  - Validžić, Ivana
PY  - 2018
UR  - http://dais.sanu.ac.rs/123456789/4637
AB  - Producing green and efficient energy sources is a major challenge. As a consequence, the use of photovoltaic devices for conversion of light into electricity is growing worldwide. A lot of effort had been invested to create high-efficient solar cells, but their durability, stability, flexibility and efficiency at low light intensities are still unexplored. Here, we built a flexible solar cell made of p-doped, amorphized a-undoped and n-doped Sb2S3 solid carrier loaded with electrolyte. Indium tin oxide glass was the working electrode, and aluminium was the counter electrode. Every (p–a–n) flexible Sb2S3/solid carrier layers were obtained using a cheap casting/solvent evaporation technique, from a blend consisted of chitosan, polyethylene glycol and electrolyte containing 0.5 M potassium iodide and 0.05 M iodine, and corresponding synthesized amorphized a-undoped and p and n-doped Sb2S3 semiconductor. Results show that flexible Sb2S3 solar cell possesses good stability and efficiency of about 10% at 5% sun. Overall, our findings demonstrate for the first time that flexible solar cell can be made and used for low light intensity applications. © 2018, Springer International Publishing AG, part of Springer Nature.
PB  - Springer
T2  - Environmental Chemistry Letters
T1  - Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity
SP  - 659
EP  - 664
VL  - 16
IS  - 2
DO  - 10.1007/s10311-017-0702-7
ER  - 
@article{
author = "Lojpur, Vesna and Krstić, Jelena and Kačarević-Popović, Zorica and Filipović, Nenad and Validžić, Ivana",
year = "2018",
url = "http://dais.sanu.ac.rs/123456789/4637",
abstract = "Producing green and efficient energy sources is a major challenge. As a consequence, the use of photovoltaic devices for conversion of light into electricity is growing worldwide. A lot of effort had been invested to create high-efficient solar cells, but their durability, stability, flexibility and efficiency at low light intensities are still unexplored. Here, we built a flexible solar cell made of p-doped, amorphized a-undoped and n-doped Sb2S3 solid carrier loaded with electrolyte. Indium tin oxide glass was the working electrode, and aluminium was the counter electrode. Every (p–a–n) flexible Sb2S3/solid carrier layers were obtained using a cheap casting/solvent evaporation technique, from a blend consisted of chitosan, polyethylene glycol and electrolyte containing 0.5 M potassium iodide and 0.05 M iodine, and corresponding synthesized amorphized a-undoped and p and n-doped Sb2S3 semiconductor. Results show that flexible Sb2S3 solar cell possesses good stability and efficiency of about 10% at 5% sun. Overall, our findings demonstrate for the first time that flexible solar cell can be made and used for low light intensity applications. © 2018, Springer International Publishing AG, part of Springer Nature.",
publisher = "Springer",
journal = "Environmental Chemistry Letters",
title = "Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity",
pages = "659-664",
volume = "16",
number = "2",
doi = "10.1007/s10311-017-0702-7"
}
Lojpur, V., Krstić, J., Kačarević-Popović, Z., Filipović, N.,& Validžić, I. (2018). Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity.
Environmental Chemistry Letters
Springer., 16(2), 659-664.
https://doi.org/10.1007/s10311-017-0702-7
Lojpur V, Krstić J, Kačarević-Popović Z, Filipović N, Validžić I. Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity. Environmental Chemistry Letters. 2018;16(2):659-664
Lojpur Vesna, Krstić Jelena, Kačarević-Popović Zorica, Filipović Nenad, Validžić Ivana, "Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity" Environmental Chemistry Letters, 16, no. 2 (2018):659-664,
https://doi.org/10.1007/s10311-017-0702-7 .
2
2
3

Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity

Lojpur, Vesna; Krstić, Jelena; Kačarević-Popović, Zorica; Filipović, Nenad; Validžić, Ivana

(Springer, 2018)

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Krstić, Jelena
AU  - Kačarević-Popović, Zorica
AU  - Filipović, Nenad
AU  - Validžić, Ivana
PY  - 2018
UR  - http://dais.sanu.ac.rs/123456789/3754
AB  - Producing green and efficient energy sources is a major challenge. As a consequence, the use of photovoltaic devices for conversion of light into electricity is growing worldwide. A lot of effort had been invested to create high-efficient solar cells, but their durability, stability, flexibility and efficiency at low light intensities are still unexplored. Here, we built a flexible solar cell made of p-doped, amorphized a-undoped and n-doped Sb2S3 solid carrier loaded with electrolyte. Indium tin oxide glass was the working electrode, and aluminium was the counter electrode. Every (p–a–n) flexible Sb2S3/solid carrier layers were obtained using a cheap casting/solvent evaporation technique, from a blend consisted of chitosan, polyethylene glycol and electrolyte containing 0.5 M potassium iodide and 0.05 M iodine, and corresponding synthesized amorphized a-undoped and p and n-doped Sb2S3 semiconductor. Results show that flexible Sb2S3 solar cell possesses good stability and efficiency of about 10% at 5% sun. Overall, our findings demonstrate for the first time that flexible solar cell can be made and used for low light intensity applications. © 2018, Springer International Publishing AG, part of Springer Nature.
PB  - Springer
T2  - Environmental Chemistry Letters
T1  - Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity
SP  - 659
EP  - 664
VL  - 16
IS  - 2
DO  - 10.1007/s10311-017-0702-7
ER  - 
@article{
author = "Lojpur, Vesna and Krstić, Jelena and Kačarević-Popović, Zorica and Filipović, Nenad and Validžić, Ivana",
year = "2018",
url = "http://dais.sanu.ac.rs/123456789/3754",
abstract = "Producing green and efficient energy sources is a major challenge. As a consequence, the use of photovoltaic devices for conversion of light into electricity is growing worldwide. A lot of effort had been invested to create high-efficient solar cells, but their durability, stability, flexibility and efficiency at low light intensities are still unexplored. Here, we built a flexible solar cell made of p-doped, amorphized a-undoped and n-doped Sb2S3 solid carrier loaded with electrolyte. Indium tin oxide glass was the working electrode, and aluminium was the counter electrode. Every (p–a–n) flexible Sb2S3/solid carrier layers were obtained using a cheap casting/solvent evaporation technique, from a blend consisted of chitosan, polyethylene glycol and electrolyte containing 0.5 M potassium iodide and 0.05 M iodine, and corresponding synthesized amorphized a-undoped and p and n-doped Sb2S3 semiconductor. Results show that flexible Sb2S3 solar cell possesses good stability and efficiency of about 10% at 5% sun. Overall, our findings demonstrate for the first time that flexible solar cell can be made and used for low light intensity applications. © 2018, Springer International Publishing AG, part of Springer Nature.",
publisher = "Springer",
journal = "Environmental Chemistry Letters",
title = "Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity",
pages = "659-664",
volume = "16",
number = "2",
doi = "10.1007/s10311-017-0702-7"
}
Lojpur, V., Krstić, J., Kačarević-Popović, Z., Filipović, N.,& Validžić, I. (2018). Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity.
Environmental Chemistry Letters
Springer., 16(2), 659-664.
https://doi.org/10.1007/s10311-017-0702-7
Lojpur V, Krstić J, Kačarević-Popović Z, Filipović N, Validžić I. Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity. Environmental Chemistry Letters. 2018;16(2):659-664
Lojpur Vesna, Krstić Jelena, Kačarević-Popović Zorica, Filipović Nenad, Validžić Ivana, "Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity" Environmental Chemistry Letters, 16, no. 2 (2018):659-664,
https://doi.org/10.1007/s10311-017-0702-7 .
2
2
3

Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis

Lojpur, Vesna; Mančić, Lidija; Vulić, Predrag; Dramićanin, Miroslav; Rabanal, Maria Eugenia; Milošević, Olivera

(2014)

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
AU  - Vulić, Predrag
AU  - Dramićanin, Miroslav
AU  - Rabanal, Maria Eugenia
AU  - Milošević, Olivera
PY  - 2014
UR  - http://dais.sanu.ac.rs/123456789/545
AB  - Sub-micronic, spherical Y2O3:Yb/Er particles comprising clustered nano-units (70 nm) were prepared via ultrasonic spray pyrolysis from pure nitrate precursor solutions with different Yb/Er dopant ratios. The particles were additionally thermally treated at 1100 °C for 12, 24 and 48 h. The structural and morphological characteristics of particles were studied by X-ray powder diffraction, Fourier transform infrared spectroscopy, field-emission scanning electron microscopy, energy dispersive X-ray analysis and specific surface area (BET) and were further correlated with their advanced optical properties. For the recorded up-conversion emissions, originating from the following Er3+ transitions: [2H9/2→4I15/2] in blue (407–420 nm); [2H11/2, 4S3/2→4I15/2] green: 510–590 nm; and [4F9/2→4I15/2] in red (640–720 nm) spectral region, the corresponding lifetimes were acquired in the wide temperature range (10–300 K). The most intense green up-conversion emission with the long decay of 550 ms is recorded for Y1.97Yb0.02Er0.01O3 particles thermally treated at 1100 °C for 24 h.
T2  - Ceramics International
T1  - Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis
SP  - 3089
EP  - 3095
VL  - 40
IS  - 2
DO  - 10.1016/j.ceramint.2013.10.002
ER  - 
@article{
author = "Lojpur, Vesna and Mančić, Lidija and Vulić, Predrag and Dramićanin, Miroslav and Rabanal, Maria Eugenia and Milošević, Olivera",
year = "2014",
url = "http://dais.sanu.ac.rs/123456789/545",
abstract = "Sub-micronic, spherical Y2O3:Yb/Er particles comprising clustered nano-units (70 nm) were prepared via ultrasonic spray pyrolysis from pure nitrate precursor solutions with different Yb/Er dopant ratios. The particles were additionally thermally treated at 1100 °C for 12, 24 and 48 h. The structural and morphological characteristics of particles were studied by X-ray powder diffraction, Fourier transform infrared spectroscopy, field-emission scanning electron microscopy, energy dispersive X-ray analysis and specific surface area (BET) and were further correlated with their advanced optical properties. For the recorded up-conversion emissions, originating from the following Er3+ transitions: [2H9/2→4I15/2] in blue (407–420 nm); [2H11/2, 4S3/2→4I15/2] green: 510–590 nm; and [4F9/2→4I15/2] in red (640–720 nm) spectral region, the corresponding lifetimes were acquired in the wide temperature range (10–300 K). The most intense green up-conversion emission with the long decay of 550 ms is recorded for Y1.97Yb0.02Er0.01O3 particles thermally treated at 1100 °C for 24 h.",
journal = "Ceramics International",
title = "Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis",
pages = "3089-3095",
volume = "40",
number = "2",
doi = "10.1016/j.ceramint.2013.10.002"
}
Lojpur, V., Mančić, L., Vulić, P., Dramićanin, M., Rabanal, M. E.,& Milošević, O. (2014). Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis.
Ceramics International, 40(2), 3089-3095.
https://doi.org/10.1016/j.ceramint.2013.10.002
Lojpur V, Mančić L, Vulić P, Dramićanin M, Rabanal ME, Milošević O. Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis. Ceramics International. 2014;40(2):3089-3095
Lojpur Vesna, Mančić Lidija, Vulić Predrag, Dramićanin Miroslav, Rabanal Maria Eugenia, Milošević Olivera, "Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis" Ceramics International, 40, no. 2 (2014):3089-3095,
https://doi.org/10.1016/j.ceramint.2013.10.002 .
14
12
14

Effect of processing parameters on structural, morphological and optical Y2O3:Yb3+/Ho3+ powders characteristics

Mančić, Lidija; Lojpur, Vesna; Marinković, Bojan; de Pinho Mauricio, M. H.; Dramićanin, Miroslav; Milošević, Olivera

(Elsevier, 2014)

TY  - JOUR
AU  - Mančić, Lidija
AU  - Lojpur, Vesna
AU  - Marinković, Bojan
AU  - de Pinho Mauricio, M. H.
AU  - Dramićanin, Miroslav
AU  - Milošević, Olivera
PY  - 2014
UR  - http://dais.sanu.ac.rs/123456789/656
AB  - Rod-like and flake-like up-converting Y2O3:Yb3+/Ho3+ particles which are composed of nanoparticles with size less than 100 nm, are prepared by a simple hydrothermal processing at 473 K (3 h) followed by additional thermal treatment at 1373 K (3 and 12 h). The effect of precursor pH value on the formation of Y2O3:Yb3+/Ho3+ is followed through X-ray powder diffractometry (XRPD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Structural refinement confirms formation of the cubic bixbyte structure (S.G. Ia-3) with the non-uniform accommodation of dopants at C2 and S6 cationic sites. Under 978 nm laser excitation, strong green (530–570 nm) up-conversion is observed in all samples. The emission shows a decrease in intensity with an increase in external temperature, indicating FIR (fluorescence intensity ratio) based temperature sensing behavior of 0.52% for the 5F4 → 5I8/5S2 → 5I8 transitions.
PB  - Elsevier
T2  - Advanced Powder Technology
T1  - Effect of processing parameters on structural, morphological and optical Y2O3:Yb3+/Ho3+ powders characteristics
SP  - 1449
EP  - 1454
VL  - 25
IS  - 5
DO  - 10.1016/j.apt.2014.03.015
ER  - 
@article{
author = "Mančić, Lidija and Lojpur, Vesna and Marinković, Bojan and de Pinho Mauricio, M. H. and Dramićanin, Miroslav and Milošević, Olivera",
year = "2014",
url = "http://dais.sanu.ac.rs/123456789/656",
abstract = "Rod-like and flake-like up-converting Y2O3:Yb3+/Ho3+ particles which are composed of nanoparticles with size less than 100 nm, are prepared by a simple hydrothermal processing at 473 K (3 h) followed by additional thermal treatment at 1373 K (3 and 12 h). The effect of precursor pH value on the formation of Y2O3:Yb3+/Ho3+ is followed through X-ray powder diffractometry (XRPD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Structural refinement confirms formation of the cubic bixbyte structure (S.G. Ia-3) with the non-uniform accommodation of dopants at C2 and S6 cationic sites. Under 978 nm laser excitation, strong green (530–570 nm) up-conversion is observed in all samples. The emission shows a decrease in intensity with an increase in external temperature, indicating FIR (fluorescence intensity ratio) based temperature sensing behavior of 0.52% for the 5F4 → 5I8/5S2 → 5I8 transitions.",
publisher = "Elsevier",
journal = "Advanced Powder Technology",
title = "Effect of processing parameters on structural, morphological and optical Y2O3:Yb3+/Ho3+ powders characteristics",
pages = "1449-1454",
volume = "25",
number = "5",
doi = "10.1016/j.apt.2014.03.015"
}
Mančić, L., Lojpur, V., Marinković, B., de Pinho Mauricio, M. H., Dramićanin, M.,& Milošević, O. (2014). Effect of processing parameters on structural, morphological and optical Y2O3:Yb3+/Ho3+ powders characteristics.
Advanced Powder Technology
Elsevier., 25(5), 1449-1454.
https://doi.org/10.1016/j.apt.2014.03.015
Mančić L, Lojpur V, Marinković B, de Pinho Mauricio MH, Dramićanin M, Milošević O. Effect of processing parameters on structural, morphological and optical Y2O3:Yb3+/Ho3+ powders characteristics. Advanced Powder Technology. 2014;25(5):1449-1454
Mančić Lidija, Lojpur Vesna, Marinković Bojan, de Pinho Mauricio M. H., Dramićanin Miroslav, Milošević Olivera, "Effect of processing parameters on structural, morphological and optical Y2O3:Yb3+/Ho3+ powders characteristics" Advanced Powder Technology, 25, no. 5 (2014):1449-1454,
https://doi.org/10.1016/j.apt.2014.03.015 .
7
7
7

Thermographic Properties of Up-conversion Emission of Y2O3:Yb, Er Nanophosphors Obtained through Hydrothermal Synthesis

Medić, Mina; Nikolić, Marko G.; Lojpur, Vesna; Mančić, Lidija; Milošević, Olivera; Dramićanin, Miroslav

(San Francisco : Materials Research Society, 2013)

TY  - CONF
AU  - Medić, Mina
AU  - Nikolić, Marko G.
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
AU  - Milošević, Olivera
AU  - Dramićanin, Miroslav
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/812
AB  - Thermographic phosphors are oxides doped With rare-earth or transition metal ions that will emit visible, Infrared, or UV light upon excitation from an external energy source This materials have received significant attention due to the potential application as optical temperature sensor In this report, we have investigated yttrium oxide co-doped with changeable ytterbium to erbium ratio (Y1.94YbO.05Er001 and Y1 97YbO 02ErO 01) fabricated through hydrothermal synthesis Process conditions (2h, 200 'C) and additional thermal treatment (3h, 1100 'C) allows obtaining nanoparticles of appropriate composition and morphology which further affect on improved photoluminescent characteristics. The fluorescence Intensity ratio (FIR) technique is used to examine potential usage of samples as low temperature sensors. This optical method is based on ratio between two emission lines or areas In photoluminescence spectrum which show temperature dependence. Photoluminescent measurements (PL) are recorded In the temperature range from 10K to 300 K under 978 nm exciting
wavelength Observing changes In following transitions blue 2H912~4115/2, green (2H1112, 4S3/2) ~ 411512 and red 4F912~4115/2 Obtained experimental results imply that the fluorescent intensity ratio of the blue, green and red lines
and areas show significant temperature sensitivity and can be used as low temperature sensor.
PB  - San Francisco : Materials Research Society
C3  - 2013 MRS Spring Meeting and Exhibit, April 1-5, 2013, San Francisco. California: Program and exhibit guide
T1  - Thermographic Properties of Up-conversion Emission of Y2O3:Yb, Er Nanophosphors Obtained through Hydrothermal Synthesis
ER  - 
@conference{
author = "Medić, Mina and Nikolić, Marko G. and Lojpur, Vesna and Mančić, Lidija and Milošević, Olivera and Dramićanin, Miroslav",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/812",
abstract = "Thermographic phosphors are oxides doped With rare-earth or transition metal ions that will emit visible, Infrared, or UV light upon excitation from an external energy source This materials have received significant attention due to the potential application as optical temperature sensor In this report, we have investigated yttrium oxide co-doped with changeable ytterbium to erbium ratio (Y1.94YbO.05Er001 and Y1 97YbO 02ErO 01) fabricated through hydrothermal synthesis Process conditions (2h, 200 'C) and additional thermal treatment (3h, 1100 'C) allows obtaining nanoparticles of appropriate composition and morphology which further affect on improved photoluminescent characteristics. The fluorescence Intensity ratio (FIR) technique is used to examine potential usage of samples as low temperature sensors. This optical method is based on ratio between two emission lines or areas In photoluminescence spectrum which show temperature dependence. Photoluminescent measurements (PL) are recorded In the temperature range from 10K to 300 K under 978 nm exciting
wavelength Observing changes In following transitions blue 2H912~4115/2, green (2H1112, 4S3/2) ~ 411512 and red 4F912~4115/2 Obtained experimental results imply that the fluorescent intensity ratio of the blue, green and red lines
and areas show significant temperature sensitivity and can be used as low temperature sensor.",
publisher = "San Francisco : Materials Research Society",
journal = "2013 MRS Spring Meeting and Exhibit, April 1-5, 2013, San Francisco. California: Program and exhibit guide",
title = "Thermographic Properties of Up-conversion Emission of Y2O3:Yb, Er Nanophosphors Obtained through Hydrothermal Synthesis"
}
Medić, M., Nikolić, M. G., Lojpur, V., Mančić, L., Milošević, O.,& Dramićanin, M. (2013). Thermographic Properties of Up-conversion Emission of Y2O3:Yb, Er Nanophosphors Obtained through Hydrothermal Synthesis.
2013 MRS Spring Meeting and Exhibit, April 1-5, 2013, San Francisco. California: Program and exhibit guide
San Francisco : Materials Research Society..
Medić M, Nikolić MG, Lojpur V, Mančić L, Milošević O, Dramićanin M. Thermographic Properties of Up-conversion Emission of Y2O3:Yb, Er Nanophosphors Obtained through Hydrothermal Synthesis. 2013 MRS Spring Meeting and Exhibit, April 1-5, 2013, San Francisco. California: Program and exhibit guide. 2013;
Medić Mina, Nikolić Marko G., Lojpur Vesna, Mančić Lidija, Milošević Olivera, Dramićanin Miroslav, "Thermographic Properties of Up-conversion Emission of Y2O3:Yb, Er Nanophosphors Obtained through Hydrothermal Synthesis" 2013 MRS Spring Meeting and Exhibit, April 1-5, 2013, San Francisco. California: Program and exhibit guide (2013)

Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing

Dugandžić, Ivan; Lojpur, Vesna; Mančić, Lidija; Dramićanin, Miroslav; Hashishin, Takeshi; Tan, Z.; Ohara, Satoshi; Milošević, Olivera

(Elsevier, 2013)

TY  - JOUR
AU  - Dugandžić, Ivan
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
AU  - Dramićanin, Miroslav
AU  - Hashishin, Takeshi
AU  - Tan, Z.
AU  - Ohara, Satoshi
AU  - Milošević, Olivera
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/15971
AB  - The opportunities of the hot wall aerosol synthesis, i.e. conventional spray pyrolysis (CSP) method are demonstrated for the generation of highly spherical three-dimensional (3D) nanostructured phosphor particles with uniformly distributed components, phases and nano-clustered inner structure. With the presumption that certain particle morphology is formed during the evaporation/drying stage, the aerosol transport properties and powder generation are correlated with the particles structural and morphological features. With the help of various analyzing techniques like Field Emission Scanning Electron Microscopy (FE-SEM), Transmission Electron Microscopy (TEM) coupled with energy dispersive X-ray Analysis and STEM mode (TEM/EDS), X-ray Powder Diffraction (XRPD) and fluorescence measurements the feasible processing of up-conversion rare-earth Y2O3:Er, Yb phosphors powders are discussed.
PB  - Elsevier
T2  - Advanced Powder Technology
T1  - Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing
SP  - 852
EP  - 857
VL  - 25
IS  - 5
DO  - 10.1016/j.apt.2013.02.011
ER  - 
@article{
author = "Dugandžić, Ivan and Lojpur, Vesna and Mančić, Lidija and Dramićanin, Miroslav and Hashishin, Takeshi and Tan, Z. and Ohara, Satoshi and Milošević, Olivera",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/15971",
abstract = "The opportunities of the hot wall aerosol synthesis, i.e. conventional spray pyrolysis (CSP) method are demonstrated for the generation of highly spherical three-dimensional (3D) nanostructured phosphor particles with uniformly distributed components, phases and nano-clustered inner structure. With the presumption that certain particle morphology is formed during the evaporation/drying stage, the aerosol transport properties and powder generation are correlated with the particles structural and morphological features. With the help of various analyzing techniques like Field Emission Scanning Electron Microscopy (FE-SEM), Transmission Electron Microscopy (TEM) coupled with energy dispersive X-ray Analysis and STEM mode (TEM/EDS), X-ray Powder Diffraction (XRPD) and fluorescence measurements the feasible processing of up-conversion rare-earth Y2O3:Er, Yb phosphors powders are discussed.",
publisher = "Elsevier",
journal = "Advanced Powder Technology",
title = "Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing",
pages = "852-857",
volume = "25",
number = "5",
doi = "10.1016/j.apt.2013.02.011"
}
Dugandžić, I., Lojpur, V., Mančić, L., Dramićanin, M., Hashishin, T., Tan, Z., Ohara, S.,& Milošević, O. (2013). Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing.
Advanced Powder Technology
Elsevier., 25(5), 852-857.
https://doi.org/10.1016/j.apt.2013.02.011
Dugandžić I, Lojpur V, Mančić L, Dramićanin M, Hashishin T, Tan Z, Ohara S, Milošević O. Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing. Advanced Powder Technology. 2013;25(5):852-857
Dugandžić Ivan, Lojpur Vesna, Mančić Lidija, Dramićanin Miroslav, Hashishin Takeshi, Tan Z., Ohara Satoshi, Milošević Olivera, "Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing" Advanced Powder Technology, 25, no. 5 (2013):852-857,
https://doi.org/10.1016/j.apt.2013.02.011 .
10
12
12

Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing

Dugandžić, Ivan; Lojpur, Vesna; Mančić, Lidija; Dramićanin, Miroslav; Rabanal, Maria Eugenia; Hashishin, Takeshi; Tan, Z.; Ohara, Satoshi; Milošević, Olivera

(Elsevier, 2013)

TY  - JOUR
AU  - Dugandžić, Ivan
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
AU  - Dramićanin, Miroslav
AU  - Rabanal, Maria Eugenia
AU  - Hashishin, Takeshi
AU  - Tan, Z.
AU  - Ohara, Satoshi
AU  - Milošević, Olivera
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/345
AB  - The opportunities of the hot wall aerosol synthesis, i.e. conventional spray pyrolysis (CSP) method are demonstrated for the generation of highly spherical three-dimensional (3D) nanostructured phosphor particles with uniformly distributed components, phases and nano-clustered inner structure. With the presumption that certain particle morphology is formed during the evaporation/drying stage, the aerosol transport properties and powder generation are correlated with the particles structural and morphological features. With the help of various analyzing techniques like Field Emission Scanning Electron Microscopy (FE-SEM), Transmission Electron Microscopy (TEM) coupled with energy dispersive X-ray Analysis and STEM mode (TEM/EDS), X-ray Powder Diffraction (XRPD) and fluorescence measurements the feasible processing of up-conversion rare-earth Y2O3:Er, Yb phosphors powders are discussed.
PB  - Elsevier
T2  - Advanced Powder Technology
T1  - Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing
SP  - 852
EP  - 857
VL  - 24
IS  - 5
DO  - 10.1016/j.apt.2013.02.011
ER  - 
@article{
author = "Dugandžić, Ivan and Lojpur, Vesna and Mančić, Lidija and Dramićanin, Miroslav and Rabanal, Maria Eugenia and Hashishin, Takeshi and Tan, Z. and Ohara, Satoshi and Milošević, Olivera",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/345",
abstract = "The opportunities of the hot wall aerosol synthesis, i.e. conventional spray pyrolysis (CSP) method are demonstrated for the generation of highly spherical three-dimensional (3D) nanostructured phosphor particles with uniformly distributed components, phases and nano-clustered inner structure. With the presumption that certain particle morphology is formed during the evaporation/drying stage, the aerosol transport properties and powder generation are correlated with the particles structural and morphological features. With the help of various analyzing techniques like Field Emission Scanning Electron Microscopy (FE-SEM), Transmission Electron Microscopy (TEM) coupled with energy dispersive X-ray Analysis and STEM mode (TEM/EDS), X-ray Powder Diffraction (XRPD) and fluorescence measurements the feasible processing of up-conversion rare-earth Y2O3:Er, Yb phosphors powders are discussed.",
publisher = "Elsevier",
journal = "Advanced Powder Technology",
title = "Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing",
pages = "852-857",
volume = "24",
number = "5",
doi = "10.1016/j.apt.2013.02.011"
}
Dugandžić, I., Lojpur, V., Mančić, L., Dramićanin, M., Rabanal, M. E., Hashishin, T., Tan, Z., Ohara, S.,& Milošević, O. (2013). Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing.
Advanced Powder Technology
Elsevier., 24(5), 852-857.
https://doi.org/10.1016/j.apt.2013.02.011
Dugandžić I, Lojpur V, Mančić L, Dramićanin M, Rabanal ME, Hashishin T, Tan Z, Ohara S, Milošević O. Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing. Advanced Powder Technology. 2013;24(5):852-857
Dugandžić Ivan, Lojpur Vesna, Mančić Lidija, Dramićanin Miroslav, Rabanal Maria Eugenia, Hashishin Takeshi, Tan Z., Ohara Satoshi, Milošević Olivera, "Aerosol route as a feasible bottom-up chemical approach for up-converting phosphor particles processing" Advanced Powder Technology, 24, no. 5 (2013):852-857,
https://doi.org/10.1016/j.apt.2013.02.011 .
10
12
12

Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route

Lojpur, Vesna; Rabanal Jiménez, Maria Eugenia; Dramićanin, Miroslav; Tan, Z.; Hashishin, Takeshi; Ohara, Satoshi; Milošević, Olivera; Mančić, Lidija

(Elsevier, 2013)

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Rabanal Jiménez, Maria Eugenia
AU  - Dramićanin, Miroslav
AU  - Tan, Z.
AU  - Hashishin, Takeshi
AU  - Ohara, Satoshi
AU  - Milošević, Olivera
AU  - Mančić, Lidija
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/15980
AB  - Nanocrystalline up-converting Y₂ O₃Yb³⁺ Er³⁺ phosphor particles were processed in a dispersed system-aerosol, generated ultrasonically at 1.3 MHz from common nitrate precursor solution having fixed ytterbium-to-erbium concentration ratio. The appropriate process parameters: residence time 21 s, carrier gas (air) flow rate 1.6 dm3/min, synthesis temperature 900 °C, led to the formation of un-agglomerated spherical nanostructured secondary particles, having mean particle size of approx 450 nm, composed of primary nanoscaled (20 nm) subunits. In order to reach targeting phase crystallinity, the as-prepared particles were additionally annealed at 1100 °C in air for 12, 24 and 48 h, respectively. Particle structure, morphology and purity were analyzed by X-ray powder diffraction (XRPD), scanning electron microscopy (FESEM/SEM), analytical and high resolution transmission electron microscopy (TEM/HRTEM) in combination with energy dispersive X-ray analysis and Fourier Transform Infrared Spectroscopy (FTIR). All samples crystallized in a cubic bixbyte-structure, space group Ia-3. The crystallite size changed with annealing time from 30 nm in as-prepared sample to 135 nm in sample annealed for 48 h, respectively. Emission spectra were assigned to the following trivalent erbium f–f electronic transitions: ²H₉/₂ → ⁴I₁₅/₂ (blue: 407–420 nm), (²H₁₁/₂̦ ⁴S₃/₂) → ⁴I₁₅/₂ (green: 510–590 nm), and ⁴F₉/₂ → ⁴I₁₅/₂ (red: 640–720 nm). The significant improvement of the emission decay times were observed after thermal treatment and this effect is correlated further with the structural and morphological particles characteristics. For the anneal-ing time of 12 h a quite high emission decay times were achieved (blue: 0.14 ms, green: 0.32 ms and red: 0.39 ms).
PB  - Elsevier
T2  - Journal of Alloys and Compounds
T1  - Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route
SP  - 584
EP  - 591
VL  - 580
DO  - 10.1016/j.jallcom.2013.07.125
ER  - 
@article{
author = "Lojpur, Vesna and Rabanal Jiménez, Maria Eugenia and Dramićanin, Miroslav and Tan, Z. and Hashishin, Takeshi and Ohara, Satoshi and Milošević, Olivera and Mančić, Lidija",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/15980",
abstract = "Nanocrystalline up-converting Y₂ O₃Yb³⁺ Er³⁺ phosphor particles were processed in a dispersed system-aerosol, generated ultrasonically at 1.3 MHz from common nitrate precursor solution having fixed ytterbium-to-erbium concentration ratio. The appropriate process parameters: residence time 21 s, carrier gas (air) flow rate 1.6 dm3/min, synthesis temperature 900 °C, led to the formation of un-agglomerated spherical nanostructured secondary particles, having mean particle size of approx 450 nm, composed of primary nanoscaled (20 nm) subunits. In order to reach targeting phase crystallinity, the as-prepared particles were additionally annealed at 1100 °C in air for 12, 24 and 48 h, respectively. Particle structure, morphology and purity were analyzed by X-ray powder diffraction (XRPD), scanning electron microscopy (FESEM/SEM), analytical and high resolution transmission electron microscopy (TEM/HRTEM) in combination with energy dispersive X-ray analysis and Fourier Transform Infrared Spectroscopy (FTIR). All samples crystallized in a cubic bixbyte-structure, space group Ia-3. The crystallite size changed with annealing time from 30 nm in as-prepared sample to 135 nm in sample annealed for 48 h, respectively. Emission spectra were assigned to the following trivalent erbium f–f electronic transitions: ²H₉/₂ → ⁴I₁₅/₂ (blue: 407–420 nm), (²H₁₁/₂̦ ⁴S₃/₂) → ⁴I₁₅/₂ (green: 510–590 nm), and ⁴F₉/₂ → ⁴I₁₅/₂ (red: 640–720 nm). The significant improvement of the emission decay times were observed after thermal treatment and this effect is correlated further with the structural and morphological particles characteristics. For the anneal-ing time of 12 h a quite high emission decay times were achieved (blue: 0.14 ms, green: 0.32 ms and red: 0.39 ms).",
publisher = "Elsevier",
journal = "Journal of Alloys and Compounds",
title = "Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route",
pages = "584-591",
volume = "580",
doi = "10.1016/j.jallcom.2013.07.125"
}
Lojpur, V., Rabanal Jiménez, M. E., Dramićanin, M., Tan, Z., Hashishin, T., Ohara, S., Milošević, O.,& Mančić, L. (2013). Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route.
Journal of Alloys and Compounds
Elsevier., 580, 584-591.
https://doi.org/10.1016/j.jallcom.2013.07.125
Lojpur V, Rabanal Jiménez ME, Dramićanin M, Tan Z, Hashishin T, Ohara S, Milošević O, Mančić L. Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route. Journal of Alloys and Compounds. 2013;580:584-591
Lojpur Vesna, Rabanal Jiménez Maria Eugenia, Dramićanin Miroslav, Tan Z., Hashishin Takeshi, Ohara Satoshi, Milošević Olivera, Mančić Lidija, "Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route" Journal of Alloys and Compounds, 580 (2013):584-591,
https://doi.org/10.1016/j.jallcom.2013.07.125 .
9
11
11

Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route

Lojpur, Vesna; Mančić, Lidija; Rabanal, Maria Eugenia; Dramićanin, Miroslav; Tan, Z.; Hashishin, Takeshi; Ohara, Satoshi; Milošević, Olivera

(Elsevier, 2013)

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
AU  - Rabanal, Maria Eugenia
AU  - Dramićanin, Miroslav
AU  - Tan, Z.
AU  - Hashishin, Takeshi
AU  - Ohara, Satoshi
AU  - Milošević, Olivera
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/359
AB  - Nanocrystalline up-converting Y2O3:Yb3+, Er3+ phosphor particles were processed in a dispersed system-aerosol, generated ultrasonically at 1.3 MHz from common nitrate precursor solution having fixed ytterbium-to-erbium concentration ratio. The appropriate process parameters: residence time 21 s, carrier gas (air) flow rate 1.6 dm3/min, synthesis temperature 900 °C, led to the formation of un-agglomerated spherical nanostructured secondary particles, having mean particle size of approx 450 nm, composed of primary nanoscaled (20 nm) subunits. In order to reach targeting phase crystallinity, the as-prepared particles were additionally annealed at 1100 °C in air for 12, 24 and 48 h, respectively. Particle structure, morphology and purity were analyzed by X-ray powder diffraction (XRPD), scanning electron microscopy (FESEM/SEM), analytical and high resolution transmission electron microscopy (TEM/HRTEM) in combination with energy dispersive X-ray analysis and Fourier Transform Infrared Spectroscopy (FTIR). All samples crystallized in a cubic bixbyte-structure, space group Ia-3. The crystallite size changed with annealing time from 30 nm in as-prepared sample to 135 nm in sample annealed for 48 h, respectively. Emission spectra were assigned to the following trivalent erbium f–f electronic transitions: 2H9/2 → 4I15/2 (blue: 407–420 nm), (2H11/2, 4S3/2) → 4I15/2 (green: 510–590 nm), and 4F9/2 → 4I15/2 (red: 640–720 nm). The significant improvement of the emission decay times were observed after thermal treatment and this effect is correlated further with the structural and morphological particles characteristics. For the annealing time of 12 h a quite high emission decay times were achieved (blue: 0.14 ms, green: 0.32 ms and red: 0.39 ms).
PB  - Elsevier
T2  - Journal of Alloys and Compounds
T1  - Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route
SP  - 584
EP  - 591
VL  - 580
DO  - 10.1016/j.jallcom.2013.07.125
ER  - 
@article{
author = "Lojpur, Vesna and Mančić, Lidija and Rabanal, Maria Eugenia and Dramićanin, Miroslav and Tan, Z. and Hashishin, Takeshi and Ohara, Satoshi and Milošević, Olivera",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/359",
abstract = "Nanocrystalline up-converting Y2O3:Yb3+, Er3+ phosphor particles were processed in a dispersed system-aerosol, generated ultrasonically at 1.3 MHz from common nitrate precursor solution having fixed ytterbium-to-erbium concentration ratio. The appropriate process parameters: residence time 21 s, carrier gas (air) flow rate 1.6 dm3/min, synthesis temperature 900 °C, led to the formation of un-agglomerated spherical nanostructured secondary particles, having mean particle size of approx 450 nm, composed of primary nanoscaled (20 nm) subunits. In order to reach targeting phase crystallinity, the as-prepared particles were additionally annealed at 1100 °C in air for 12, 24 and 48 h, respectively. Particle structure, morphology and purity were analyzed by X-ray powder diffraction (XRPD), scanning electron microscopy (FESEM/SEM), analytical and high resolution transmission electron microscopy (TEM/HRTEM) in combination with energy dispersive X-ray analysis and Fourier Transform Infrared Spectroscopy (FTIR). All samples crystallized in a cubic bixbyte-structure, space group Ia-3. The crystallite size changed with annealing time from 30 nm in as-prepared sample to 135 nm in sample annealed for 48 h, respectively. Emission spectra were assigned to the following trivalent erbium f–f electronic transitions: 2H9/2 → 4I15/2 (blue: 407–420 nm), (2H11/2, 4S3/2) → 4I15/2 (green: 510–590 nm), and 4F9/2 → 4I15/2 (red: 640–720 nm). The significant improvement of the emission decay times were observed after thermal treatment and this effect is correlated further with the structural and morphological particles characteristics. For the annealing time of 12 h a quite high emission decay times were achieved (blue: 0.14 ms, green: 0.32 ms and red: 0.39 ms).",
publisher = "Elsevier",
journal = "Journal of Alloys and Compounds",
title = "Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route",
pages = "584-591",
volume = "580",
doi = "10.1016/j.jallcom.2013.07.125"
}
Lojpur, V., Mančić, L., Rabanal, M. E., Dramićanin, M., Tan, Z., Hashishin, T., Ohara, S.,& Milošević, O. (2013). Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route.
Journal of Alloys and Compounds
Elsevier., 580, 584-591.
https://doi.org/10.1016/j.jallcom.2013.07.125
Lojpur V, Mančić L, Rabanal ME, Dramićanin M, Tan Z, Hashishin T, Ohara S, Milošević O. Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route. Journal of Alloys and Compounds. 2013;580:584-591
Lojpur Vesna, Mančić Lidija, Rabanal Maria Eugenia, Dramićanin Miroslav, Tan Z., Hashishin Takeshi, Ohara Satoshi, Milošević Olivera, "Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route" Journal of Alloys and Compounds, 580 (2013):584-591,
https://doi.org/10.1016/j.jallcom.2013.07.125 .
9
11
11

Effect of processing parameters on structural and morphological Y2O3 :Yb3+/Ho3+ powders characteristics

Lojpur, Vesna; Mančić, Lidija; Marinković, Bojan; Dramićanin, Miroslav; Milošević, Olivera

(Belgrade : Serbian Ceramic Society, 2013)

TY  - CONF
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
AU  - Marinković, Bojan
AU  - Dramićanin, Miroslav
AU  - Milošević, Olivera
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/419
AB  - Up-converting yttrium oxide powders doped with Yb3+ and co-doped with Ho3+ were
synthesized through hydrothermal processing at 200 °C/3 h. Reverse precipitation of the starting nitrates mixture is performed with the help of ammonium hydrogen carbonate (AHC) solution up to pH 7 or pH 9 prior to hydrothermal treatment. Morphological features of the as-prepared (asp)powders and rare earth oxides obtained after powders additional annealing at 1100 oC (3 and 12 h)are discussed based on X-ray powder diffractometry (XRPD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Structural refinement confirmed generation of the cubic bixbyte-structure (S.G. Ia-3) with non-uniform accomodation of dopants at C2 and S6 cationic sites. SEM revealed that the particles have plate-like or rod-like morphology in dependence of hydrothermal processing (pH). Due to the fact that are composed from nanograins (30-100 nm) they demonstrate prominent green luminescence centered at 550 nm after been excited with the infrared laser source (λ=978 nm).
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
T1  - Effect of processing parameters on structural and morphological Y2O3 :Yb3+/Ho3+ powders characteristics
SP  - 41
EP  - 42
ER  - 
@conference{
author = "Lojpur, Vesna and Mančić, Lidija and Marinković, Bojan and Dramićanin, Miroslav and Milošević, Olivera",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/419",
abstract = "Up-converting yttrium oxide powders doped with Yb3+ and co-doped with Ho3+ were
synthesized through hydrothermal processing at 200 °C/3 h. Reverse precipitation of the starting nitrates mixture is performed with the help of ammonium hydrogen carbonate (AHC) solution up to pH 7 or pH 9 prior to hydrothermal treatment. Morphological features of the as-prepared (asp)powders and rare earth oxides obtained after powders additional annealing at 1100 oC (3 and 12 h)are discussed based on X-ray powder diffractometry (XRPD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Structural refinement confirmed generation of the cubic bixbyte-structure (S.G. Ia-3) with non-uniform accomodation of dopants at C2 and S6 cationic sites. SEM revealed that the particles have plate-like or rod-like morphology in dependence of hydrothermal processing (pH). Due to the fact that are composed from nanograins (30-100 nm) they demonstrate prominent green luminescence centered at 550 nm after been excited with the infrared laser source (λ=978 nm).",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade",
title = "Effect of processing parameters on structural and morphological Y2O3 :Yb3+/Ho3+ powders characteristics",
pages = "41-42"
}
Lojpur, V., Mančić, L., Marinković, B., Dramićanin, M.,& Milošević, O. (2013). Effect of processing parameters on structural and morphological Y2O3 :Yb3+/Ho3+ powders characteristics.
Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
Belgrade : Serbian Ceramic Society., 41-42.
Lojpur V, Mančić L, Marinković B, Dramićanin M, Milošević O. Effect of processing parameters on structural and morphological Y2O3 :Yb3+/Ho3+ powders characteristics. Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade. 2013;:41-42
Lojpur Vesna, Mančić Lidija, Marinković Bojan, Dramićanin Miroslav, Milošević Olivera, "Effect of processing parameters on structural and morphological Y2O3 :Yb3+/Ho3+ powders characteristics" Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade (2013):41-42

Hydrothermal synthesis of nanostructured Y2O3 and (Y0.75Gd0.25)2O3 based phosphors

Mančić, Lidija; Lojpur, Vesna; Marinković, Bojan; Dramićanin, Miroslav; Milošević, Olivera

(Elsevier, 2013)

TY  - JOUR
AU  - Mančić, Lidija
AU  - Lojpur, Vesna
AU  - Marinković, Bojan
AU  - Dramićanin, Miroslav
AU  - Milošević, Olivera
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/362
AB  - Examples of (Y2O3–Gd2O3):Eu3+ and Y2O3:(Yb3+/Er3+) rare earth oxide-based phosphors are presented to highlight the controlled synthesis of 1D and 2D nanostructures through simple hydrothermal method. Conversion of the starting nitrates mixture into carbonate hydrate phase is performed with the help of ammonium hydrogen carbonate solution during hydrothermal treatment at 200 °C/3 h. Morphological architectures of rare earth oxides obtained after subsequent powders thermal treatment at 600 and 1100 °C for 3 and 12 h and their correlation with the optical characteristics are discussed based on X-ray powder diffractometry, field emission scanning electron microscopy, infrared spectroscopy and photoluminescence measurements. Strong red and green emission followed by the superior decay times are attributed to the high powders purity and homogeneous dopants distribution over the host lattice matrix.
PB  - Elsevier
T2  - Optical Materials
T1  - Hydrothermal synthesis of nanostructured Y2O3 and (Y0.75Gd0.25)2O3 based phosphors
SP  - 1817
EP  - 1823
VL  - 35
IS  - 10
DO  - 10.1016/j.optmat.2013.03.006
ER  - 
@article{
author = "Mančić, Lidija and Lojpur, Vesna and Marinković, Bojan and Dramićanin, Miroslav and Milošević, Olivera",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/362",
abstract = "Examples of (Y2O3–Gd2O3):Eu3+ and Y2O3:(Yb3+/Er3+) rare earth oxide-based phosphors are presented to highlight the controlled synthesis of 1D and 2D nanostructures through simple hydrothermal method. Conversion of the starting nitrates mixture into carbonate hydrate phase is performed with the help of ammonium hydrogen carbonate solution during hydrothermal treatment at 200 °C/3 h. Morphological architectures of rare earth oxides obtained after subsequent powders thermal treatment at 600 and 1100 °C for 3 and 12 h and their correlation with the optical characteristics are discussed based on X-ray powder diffractometry, field emission scanning electron microscopy, infrared spectroscopy and photoluminescence measurements. Strong red and green emission followed by the superior decay times are attributed to the high powders purity and homogeneous dopants distribution over the host lattice matrix.",
publisher = "Elsevier",
journal = "Optical Materials",
title = "Hydrothermal synthesis of nanostructured Y2O3 and (Y0.75Gd0.25)2O3 based phosphors",
pages = "1817-1823",
volume = "35",
number = "10",
doi = "10.1016/j.optmat.2013.03.006"
}
Mančić, L., Lojpur, V., Marinković, B., Dramićanin, M.,& Milošević, O. (2013). Hydrothermal synthesis of nanostructured Y2O3 and (Y0.75Gd0.25)2O3 based phosphors.
Optical Materials
Elsevier., 35(10), 1817-1823.
https://doi.org/10.1016/j.optmat.2013.03.006
Mančić L, Lojpur V, Marinković B, Dramićanin M, Milošević O. Hydrothermal synthesis of nanostructured Y2O3 and (Y0.75Gd0.25)2O3 based phosphors. Optical Materials. 2013;35(10):1817-1823
Mančić Lidija, Lojpur Vesna, Marinković Bojan, Dramićanin Miroslav, Milošević Olivera, "Hydrothermal synthesis of nanostructured Y2O3 and (Y0.75Gd0.25)2O3 based phosphors" Optical Materials, 35, no. 10 (2013):1817-1823,
https://doi.org/10.1016/j.optmat.2013.03.006 .
22
19
22

Y2O3:Yb,Tm and Y2O3:Yb,Ho powders for low-temperature thermometry based on up-conversion fluorescence

Lojpur, Vesna; Nikolić, M.; Mančić, Lidija; Milošević, Olivera; Dramićanin, Miroslav

(Elsevier, 2013)

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Nikolić, M.
AU  - Mančić, Lidija
AU  - Milošević, Olivera
AU  - Dramićanin, Miroslav
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/360
AB  - Recently, trivalent rare earth doped materials have received significant attention due to the strong temperature dependence of the fluorescence emission of these materials, which can be useful in temperature sensing. Here, we investigated Y2O3 ceramic powders doped with Yb3+ and co-doped with either Tm3+ or Ho3+. The powders were obtained via spray pyrolysis at 900 °C and additionally thermally treated at 1100 °C for 24 h. Structural characterization using X-ray powder diffraction confirmed the cubic bixbyte structure. Scanning electron microscopy (SEM) revealed that the particles exhibit a uniform spherical morphology. The up-conversion emissions were measured using laser excitation at 978 nm, resulting in the following transitions: blue emission in the range of 450–500 nm, weak red emission in the range of 650–680 nm and near infrared emission in the range of 765–840 nm for Tm3+, as well as green emission centered at 550 nm and weak near infrared emission at 755 nm for the Ho3+ ions. In addition, the temperature dependence of the fluorescence intensity ratios of different Stark components was analyzed in the range of 10–300 K. Significant temperature sensitivity was detected for several components, with the largest value of 0.097 K−1 related to the intensity ratio of I536 and I772 emissions observed for the Y2O3:Yb,Ho powder.
PB  - Elsevier
T2  - Ceramics International
T1  - Y2O3:Yb,Tm and Y2O3:Yb,Ho powders for low-temperature thermometry based on up-conversion fluorescence
SP  - 1129
EP  - 1134
VL  - 39
IS  - 2
DO  - 10.1016/j.ceramint.2012.07.036
ER  - 
@article{
author = "Lojpur, Vesna and Nikolić, M. and Mančić, Lidija and Milošević, Olivera and Dramićanin, Miroslav",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/360",
abstract = "Recently, trivalent rare earth doped materials have received significant attention due to the strong temperature dependence of the fluorescence emission of these materials, which can be useful in temperature sensing. Here, we investigated Y2O3 ceramic powders doped with Yb3+ and co-doped with either Tm3+ or Ho3+. The powders were obtained via spray pyrolysis at 900 °C and additionally thermally treated at 1100 °C for 24 h. Structural characterization using X-ray powder diffraction confirmed the cubic bixbyte structure. Scanning electron microscopy (SEM) revealed that the particles exhibit a uniform spherical morphology. The up-conversion emissions were measured using laser excitation at 978 nm, resulting in the following transitions: blue emission in the range of 450–500 nm, weak red emission in the range of 650–680 nm and near infrared emission in the range of 765–840 nm for Tm3+, as well as green emission centered at 550 nm and weak near infrared emission at 755 nm for the Ho3+ ions. In addition, the temperature dependence of the fluorescence intensity ratios of different Stark components was analyzed in the range of 10–300 K. Significant temperature sensitivity was detected for several components, with the largest value of 0.097 K−1 related to the intensity ratio of I536 and I772 emissions observed for the Y2O3:Yb,Ho powder.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "Y2O3:Yb,Tm and Y2O3:Yb,Ho powders for low-temperature thermometry based on up-conversion fluorescence",
pages = "1129-1134",
volume = "39",
number = "2",
doi = "10.1016/j.ceramint.2012.07.036"
}
Lojpur, V., Nikolić, M., Mančić, L., Milošević, O.,& Dramićanin, M. (2013). Y2O3:Yb,Tm and Y2O3:Yb,Ho powders for low-temperature thermometry based on up-conversion fluorescence.
Ceramics International
Elsevier., 39(2), 1129-1134.
https://doi.org/10.1016/j.ceramint.2012.07.036
Lojpur V, Nikolić M, Mančić L, Milošević O, Dramićanin M. Y2O3:Yb,Tm and Y2O3:Yb,Ho powders for low-temperature thermometry based on up-conversion fluorescence. Ceramics International. 2013;39(2):1129-1134
Lojpur Vesna, Nikolić M., Mančić Lidija, Milošević Olivera, Dramićanin Miroslav, "Y2O3:Yb,Tm and Y2O3:Yb,Ho powders for low-temperature thermometry based on up-conversion fluorescence" Ceramics International, 39, no. 2 (2013):1129-1134,
https://doi.org/10.1016/j.ceramint.2012.07.036 .
84
84
89

Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route

Mančić, Lidija; Lojpur, Vesna; Barroso, Ignacio; Rabanal, Maria Eugenia; Milošević, Olivera

(Hoboken, NJ : John Wiley & Sons, 2012)

TY  - JOUR
AU  - Mančić, Lidija
AU  - Lojpur, Vesna
AU  - Barroso, Ignacio
AU  - Rabanal, Maria Eugenia
AU  - Milošević, Olivera
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/15973
AB  - Polycrystalline fine powders of yttrium aluminate doped with Ce3+ were synthesised by spray pyrolysis of a polymeric precursor, which was obtained by dissolving the corresponding nitrates in a solution of ethylenediaminetetraacetic acid (EDTA) in ethylene glycol (EG). Aerosol decomposition was performed at 550 °C followed by an additional thermal treatment (900–1100 °C). The yield of either a single yttrium aluminium perovskite (YAP) phase or a single yttrium aluminium garnet (YAG) phase was investigated as a function of the predefined yttrium/aluminium ratio, the cerium doping concentration, the processing temperature, and the thermal-treatment regime, which included the variation of the heating and cooling rates (dT/dt), the residence time (τ), and the atmosphere. Changes in the composition and structure of the precursor during thermal decomposition were investigated by thermogravimetric and differential thermal analysis (TGA/DTA) and FTIR spectroscopy. The particle morphology and structure were analysed by a combination of scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM/EDS) and by high-resolution transmission electron microscopy (HR-TEM). The structural refinement was based on the phase identification performed by X-ray powder diffraction (XRPD). The emission spectra were recorded within the range 325–800 nm by applying excitation wavelengths of 297 (YAP) and 450 nm (YAG). The employed synthesis conditions assured the formation of spherical, non-agglomerated particles with well-developed surfaces and diameters between 200 and 800 nm. For a predefined Y/Al ratio of 1:1, lower processing temperatures combined with longer heat treatments under stationary conditions resulted in a multiphase system, composed of YAP, YAG, and monoclinic yttrium aluminate (YAM) phases. However, a short heat treatment with a high heating rate (200 °C/min) at higher temperatures results in the formation of a kinetically favoured pure YAP hexagonal phase. On the other hand, for a predefined Y/Al ratio of 3:5, the generation of a thermodynamically favoured pure YAG phase has been confirmed, regardless of the applied heat-treatment conditions. Although incomplete, Ce3+ introduction into the host matrix has been detected by XRPD and luminescence measurements.
PB  - Hoboken, NJ : John Wiley & Sons
T2  - European Journal of Inorganic Chemistry
T1  - Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route
SP  - 2716
EP  - 2724
VL  - 16
DO  - 10.1002/ejic.201101053
ER  - 
@article{
author = "Mančić, Lidija and Lojpur, Vesna and Barroso, Ignacio and Rabanal, Maria Eugenia and Milošević, Olivera",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/15973",
abstract = "Polycrystalline fine powders of yttrium aluminate doped with Ce3+ were synthesised by spray pyrolysis of a polymeric precursor, which was obtained by dissolving the corresponding nitrates in a solution of ethylenediaminetetraacetic acid (EDTA) in ethylene glycol (EG). Aerosol decomposition was performed at 550 °C followed by an additional thermal treatment (900–1100 °C). The yield of either a single yttrium aluminium perovskite (YAP) phase or a single yttrium aluminium garnet (YAG) phase was investigated as a function of the predefined yttrium/aluminium ratio, the cerium doping concentration, the processing temperature, and the thermal-treatment regime, which included the variation of the heating and cooling rates (dT/dt), the residence time (τ), and the atmosphere. Changes in the composition and structure of the precursor during thermal decomposition were investigated by thermogravimetric and differential thermal analysis (TGA/DTA) and FTIR spectroscopy. The particle morphology and structure were analysed by a combination of scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM/EDS) and by high-resolution transmission electron microscopy (HR-TEM). The structural refinement was based on the phase identification performed by X-ray powder diffraction (XRPD). The emission spectra were recorded within the range 325–800 nm by applying excitation wavelengths of 297 (YAP) and 450 nm (YAG). The employed synthesis conditions assured the formation of spherical, non-agglomerated particles with well-developed surfaces and diameters between 200 and 800 nm. For a predefined Y/Al ratio of 1:1, lower processing temperatures combined with longer heat treatments under stationary conditions resulted in a multiphase system, composed of YAP, YAG, and monoclinic yttrium aluminate (YAM) phases. However, a short heat treatment with a high heating rate (200 °C/min) at higher temperatures results in the formation of a kinetically favoured pure YAP hexagonal phase. On the other hand, for a predefined Y/Al ratio of 3:5, the generation of a thermodynamically favoured pure YAG phase has been confirmed, regardless of the applied heat-treatment conditions. Although incomplete, Ce3+ introduction into the host matrix has been detected by XRPD and luminescence measurements.",
publisher = "Hoboken, NJ : John Wiley & Sons",
journal = "European Journal of Inorganic Chemistry",
title = "Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route",
pages = "2716-2724",
volume = "16",
doi = "10.1002/ejic.201101053"
}
Mančić, L., Lojpur, V., Barroso, I., Rabanal, M. E.,& Milošević, O. (2012). Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route.
European Journal of Inorganic Chemistry
Hoboken, NJ : John Wiley & Sons., 16, 2716-2724.
https://doi.org/10.1002/ejic.201101053
Mančić L, Lojpur V, Barroso I, Rabanal ME, Milošević O. Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route. European Journal of Inorganic Chemistry. 2012;16:2716-2724
Mančić Lidija, Lojpur Vesna, Barroso Ignacio, Rabanal Maria Eugenia, Milošević Olivera, "Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route" European Journal of Inorganic Chemistry, 16 (2012):2716-2724,
https://doi.org/10.1002/ejic.201101053 .
1
9
10
12

Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders

Lojpur, Vesna; Nikolić, Marko G.; Medić, Mina; Mančić, Lidija; Milošević, Olivera; Dramićanin, Miroslav

(2012)

TY  - CONF
AU  - Lojpur, Vesna
AU  - Nikolić, Marko G.
AU  - Medić, Mina
AU  - Mančić, Lidija
AU  - Milošević, Olivera
AU  - Dramićanin, Miroslav
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/509
AB  - In recent years trivalent rare earth doped materials have received significant attention for optical temperature sensors. In these materials ratio of fluorescence emissions from different energy levels exhibit strong temperature dependence. Synthesized Y2O3:Yb,Tm and Y2O3:Yb,Ho powders were obtained via spray pyrolysis at 900 °C using 0.1 M nitrate precursor. Using laser excitation at 978 nm we investigated upconversion emission of these powders and recorded characteristic transitions: 1D2→3F4, 1G4→3H6, 1G4→3F4, 3F2,3→3H6, 1D2→3F3, 1G4→3H6, 3H4→3H6 for Tm3+ and 5F4, 5S2→5I8, 5F5→5I8, 5F4, 5S2→5I7 for Ho3+. Further we analyzed temperature dependence of fluorescence intensity ratios of different Stark components in the range from 10K to 300K. Several of these ratios exhibit significant temperature sensitivity, with the largest value of 0.08 K-1.
C3  - 2nd International Conference on Optical, Electronic and Electrical Materials, 5-7 August 2012, Shanghai, China
T1  - Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders
ER  - 
@conference{
author = "Lojpur, Vesna and Nikolić, Marko G. and Medić, Mina and Mančić, Lidija and Milošević, Olivera and Dramićanin, Miroslav",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/509",
abstract = "In recent years trivalent rare earth doped materials have received significant attention for optical temperature sensors. In these materials ratio of fluorescence emissions from different energy levels exhibit strong temperature dependence. Synthesized Y2O3:Yb,Tm and Y2O3:Yb,Ho powders were obtained via spray pyrolysis at 900 °C using 0.1 M nitrate precursor. Using laser excitation at 978 nm we investigated upconversion emission of these powders and recorded characteristic transitions: 1D2→3F4, 1G4→3H6, 1G4→3F4, 3F2,3→3H6, 1D2→3F3, 1G4→3H6, 3H4→3H6 for Tm3+ and 5F4, 5S2→5I8, 5F5→5I8, 5F4, 5S2→5I7 for Ho3+. Further we analyzed temperature dependence of fluorescence intensity ratios of different Stark components in the range from 10K to 300K. Several of these ratios exhibit significant temperature sensitivity, with the largest value of 0.08 K-1.",
journal = "2nd International Conference on Optical, Electronic and Electrical Materials, 5-7 August 2012, Shanghai, China",
title = "Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders"
}
Lojpur, V., Nikolić, M. G., Medić, M., Mančić, L., Milošević, O.,& Dramićanin, M. (2012). Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders.
2nd International Conference on Optical, Electronic and Electrical Materials, 5-7 August 2012, Shanghai, China.
Lojpur V, Nikolić MG, Medić M, Mančić L, Milošević O, Dramićanin M. Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders. 2nd International Conference on Optical, Electronic and Electrical Materials, 5-7 August 2012, Shanghai, China. 2012;
Lojpur Vesna, Nikolić Marko G., Medić Mina, Mančić Lidija, Milošević Olivera, Dramićanin Miroslav, "Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders" 2nd International Conference on Optical, Electronic and Electrical Materials, 5-7 August 2012, Shanghai, China (2012)

Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders

Lojpur, Vesna; Nikolić, M.; Mančić, Lidija; Milošević, Olivera; Dramićanin, Miroslav

(2012)

TY  - CONF
AU  - Lojpur, Vesna
AU  - Nikolić, M.
AU  - Mančić, Lidija
AU  - Milošević, Olivera
AU  - Dramićanin, Miroslav
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/142
AB  - Poster presented at the Second International Conference on Optical, Electronic and Electrical Materials. 5-7 August 2012, Shanghai, China
T1  - Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders
ER  - 
@conference{
author = "Lojpur, Vesna and Nikolić, M. and Mančić, Lidija and Milošević, Olivera and Dramićanin, Miroslav",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/142",
abstract = "Poster presented at the Second International Conference on Optical, Electronic and Electrical Materials. 5-7 August 2012, Shanghai, China",
title = "Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders"
}
Lojpur, V., Nikolić, M., Mančić, L., Milošević, O.,& Dramićanin, M. (2012). Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders.
.
Lojpur V, Nikolić M, Mančić L, Milošević O, Dramićanin M. Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders. 2012;
Lojpur Vesna, Nikolić M., Mančić Lidija, Milošević Olivera, Dramićanin Miroslav, "Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders" (2012)

Up-conversion Luminescence in Ho3+ and Tm3+ co-doped Y2O3 :Yb3+ Fine Powders

Lojpur, Vesna; Nikolić, M.; Mančić, Lidija; Dramićanin, Miroslav; Milošević, Olivera

(Belgrade : Serbian Ceramic Society, 2012)

TY  - CONF
AU  - Lojpur, Vesna
AU  - Nikolić, M.
AU  - Mančić, Lidija
AU  - Dramićanin, Miroslav
AU  - Milošević, Olivera
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/507
AB  - Fine yttrium oxide powders doped with Yb3+ and co-doped either with Tm3+ or Ho3+ were synthesized via spray pyrolysis at 900 °C using 0.1 M nitrate precursor. Synthesized powders were additionally thermally treated at 1100 °C for 24h. The characterization was done through X-ray powder diffraction (XRPD), scanning electron microscopy (SEM) and photoluminescent measurements (PL). Generation of cubic bixbyte-structure with space group Ia-3 is confirmed in all samples. Spherical particles with the mean size of ~ 380 nm generated through volume precipitation and collision of much smaller nano grains expose certain degree of porosity which increase further with the powder calcination. Powder’s optical characterization includes infrared, visible and ultraviolet spectra measurements as well as determination of the lifetime. The amplified emission intensities and enhanced lifetime in thermally treated samples are correlated with the powders morphological and structural changes.
PB  - Belgrade : Serbian Ceramic Society
C3  - The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts
T1  - Up-conversion Luminescence in Ho3+ and Tm3+ co-doped Y2O3 :Yb3+ Fine Powders
SP  - 26
EP  - 26
ER  - 
@conference{
author = "Lojpur, Vesna and Nikolić, M. and Mančić, Lidija and Dramićanin, Miroslav and Milošević, Olivera",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/507",
abstract = "Fine yttrium oxide powders doped with Yb3+ and co-doped either with Tm3+ or Ho3+ were synthesized via spray pyrolysis at 900 °C using 0.1 M nitrate precursor. Synthesized powders were additionally thermally treated at 1100 °C for 24h. The characterization was done through X-ray powder diffraction (XRPD), scanning electron microscopy (SEM) and photoluminescent measurements (PL). Generation of cubic bixbyte-structure with space group Ia-3 is confirmed in all samples. Spherical particles with the mean size of ~ 380 nm generated through volume precipitation and collision of much smaller nano grains expose certain degree of porosity which increase further with the powder calcination. Powder’s optical characterization includes infrared, visible and ultraviolet spectra measurements as well as determination of the lifetime. The amplified emission intensities and enhanced lifetime in thermally treated samples are correlated with the powders morphological and structural changes.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts",
title = "Up-conversion Luminescence in Ho3+ and Tm3+ co-doped Y2O3 :Yb3+ Fine Powders",
pages = "26-26"
}
Lojpur, V., Nikolić, M., Mančić, L., Dramićanin, M.,& Milošević, O. (2012). Up-conversion Luminescence in Ho3+ and Tm3+ co-doped Y2O3 :Yb3+ Fine Powders.
The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts
Belgrade : Serbian Ceramic Society., 26-26.
Lojpur V, Nikolić M, Mančić L, Dramićanin M, Milošević O. Up-conversion Luminescence in Ho3+ and Tm3+ co-doped Y2O3 :Yb3+ Fine Powders. The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts. 2012;:26-26
Lojpur Vesna, Nikolić M., Mančić Lidija, Dramićanin Miroslav, Milošević Olivera, "Up-conversion Luminescence in Ho3+ and Tm3+ co-doped Y2O3 :Yb3+ Fine Powders" The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts (2012):26-26

Hydrothermal synthesis of nanostructured rare earth oxide – based phosphors

Mančić, Lidija; Lojpur, Vesna; Marinković, Bojan; Rabanal, Maria Eugenia; Dramićanin, Miroslav; Milošević, Olivera

(Belgrade : Agencija FORMAT, 2012)

TY  - CONF
AU  - Mančić, Lidija
AU  - Lojpur, Vesna
AU  - Marinković, Bojan
AU  - Rabanal, Maria Eugenia
AU  - Dramićanin, Miroslav
AU  - Milošević, Olivera
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/514
AB  - Synthesis of nanostructured rare earth oxide-based phosphor particles with enhanced optical characteristics leads to the creation of the new photonic devices with diverse applications. Tailoring of the phosphors quality depends on our ability to utilize the best of their intrinsic structure through the control of nucleation and growth process of the desired phase. A large number of works have contributed to the better control of particle shape and crystal growth in soft-chemistry routes. Here, examples from (Y2O3-Gd2O3): Eu3+ and Y2O3:(Yb3+/Er3+) will be presented to highlight the controlled synthesis of 1D and 2D nanostructures through simple hydrothermal method. Conversion of the starting nitrates mixture into carbonate hydrate phase is performed with the help of ammonium hydrogen carbonate solution during hydrothermal treatment at 200oC/3h. Morphological architectures of rare earth oxides obtained after subsequent thermal treatment and their correlation with the optical characteristics will be discussed based on X-ray powder diffractometry, particle size analysis, scanning electron microscopy, X-ray energy dispersive spectroscopy, transmission electron microscopy and photoluminescence measurements.
PB  - Belgrade : Agencija FORMAT
C3  - ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract
T1  - Hydrothermal synthesis of nanostructured rare earth oxide – based phosphors
SP  - 8
EP  - 8
ER  - 
@conference{
author = "Mančić, Lidija and Lojpur, Vesna and Marinković, Bojan and Rabanal, Maria Eugenia and Dramićanin, Miroslav and Milošević, Olivera",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/514",
abstract = "Synthesis of nanostructured rare earth oxide-based phosphor particles with enhanced optical characteristics leads to the creation of the new photonic devices with diverse applications. Tailoring of the phosphors quality depends on our ability to utilize the best of their intrinsic structure through the control of nucleation and growth process of the desired phase. A large number of works have contributed to the better control of particle shape and crystal growth in soft-chemistry routes. Here, examples from (Y2O3-Gd2O3): Eu3+ and Y2O3:(Yb3+/Er3+) will be presented to highlight the controlled synthesis of 1D and 2D nanostructures through simple hydrothermal method. Conversion of the starting nitrates mixture into carbonate hydrate phase is performed with the help of ammonium hydrogen carbonate solution during hydrothermal treatment at 200oC/3h. Morphological architectures of rare earth oxides obtained after subsequent thermal treatment and their correlation with the optical characteristics will be discussed based on X-ray powder diffractometry, particle size analysis, scanning electron microscopy, X-ray energy dispersive spectroscopy, transmission electron microscopy and photoluminescence measurements.",
publisher = "Belgrade : Agencija FORMAT",
journal = "ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract",
title = "Hydrothermal synthesis of nanostructured rare earth oxide – based phosphors",
pages = "8-8"
}
Mančić, L., Lojpur, V., Marinković, B., Rabanal, M. E., Dramićanin, M.,& Milošević, O. (2012). Hydrothermal synthesis of nanostructured rare earth oxide – based phosphors.
ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract
Belgrade : Agencija FORMAT., 8-8.
Mančić L, Lojpur V, Marinković B, Rabanal ME, Dramićanin M, Milošević O. Hydrothermal synthesis of nanostructured rare earth oxide – based phosphors. ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract. 2012;:8-8
Mančić Lidija, Lojpur Vesna, Marinković Bojan, Rabanal Maria Eugenia, Dramićanin Miroslav, Milošević Olivera, "Hydrothermal synthesis of nanostructured rare earth oxide – based phosphors" ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract (2012):8-8

Low temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3

Lojpur, Vesna; Nikolić, M.; Mančić, Lidija; Dramićanin, Miroslav; Milošević, Olivera

(Belgrade : Agencija FORMAT, 2012)

TY  - CONF
AU  - Lojpur, Vesna
AU  - Nikolić, M.
AU  - Mančić, Lidija
AU  - Dramićanin, Miroslav
AU  - Milošević, Olivera
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/508
AB  - Over the past years, Rare Earth (RE3+) ions doped materials have been attracted a great deal of interest due to the potential application for optical temperature sensors. Luminescence properties of these materials are sensitive and changeable with temperature. Here, we have investigated yttrium oxide doped with Yb3+ and Er3+ that was synthesized through spray pyrolysis method at 900 °C and afterwards additionally thermally treated at 1100 °C for either 12, 24 or 48h. Structural and morphological characterizations were done through X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM). The obtained particles were spherical in shape and crystallized in cubic bixbyte structure with space group Ia-3. Photoluminescent measurements (PL) were recorded using the 978 nm exciting wavelength as a function of temperature in the range from 10 K to 300 K. Emission spectra are assigned to the following trivalent erbium f-f electronic transitions: 2H9/2→4I15/2 (blue: 407-420 nm), (2H11/2, 4S3/2) → 4I15/2 (green: 510-590 nm), and 4F9/2→4I15/2 (red: 640-720 nm). The fluorescent intensity ratio of the blue, green and red areas under emission bands was also examined and showed significant temperature sensitivity, with the largest value of 2.7 K-1.
PB  - Belgrade : Agencija FORMAT
C3  - ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract
T1  - Low temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3
SP  - 153
EP  - 153
ER  - 
@conference{
author = "Lojpur, Vesna and Nikolić, M. and Mančić, Lidija and Dramićanin, Miroslav and Milošević, Olivera",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/508",
abstract = "Over the past years, Rare Earth (RE3+) ions doped materials have been attracted a great deal of interest due to the potential application for optical temperature sensors. Luminescence properties of these materials are sensitive and changeable with temperature. Here, we have investigated yttrium oxide doped with Yb3+ and Er3+ that was synthesized through spray pyrolysis method at 900 °C and afterwards additionally thermally treated at 1100 °C for either 12, 24 or 48h. Structural and morphological characterizations were done through X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM). The obtained particles were spherical in shape and crystallized in cubic bixbyte structure with space group Ia-3. Photoluminescent measurements (PL) were recorded using the 978 nm exciting wavelength as a function of temperature in the range from 10 K to 300 K. Emission spectra are assigned to the following trivalent erbium f-f electronic transitions: 2H9/2→4I15/2 (blue: 407-420 nm), (2H11/2, 4S3/2) → 4I15/2 (green: 510-590 nm), and 4F9/2→4I15/2 (red: 640-720 nm). The fluorescent intensity ratio of the blue, green and red areas under emission bands was also examined and showed significant temperature sensitivity, with the largest value of 2.7 K-1.",
publisher = "Belgrade : Agencija FORMAT",
journal = "ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract",
title = "Low temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3",
pages = "153-153"
}
Lojpur, V., Nikolić, M., Mančić, L., Dramićanin, M.,& Milošević, O. (2012). Low temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3.
ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract
Belgrade : Agencija FORMAT., 153-153.
Lojpur V, Nikolić M, Mančić L, Dramićanin M, Milošević O. Low temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3. ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract. 2012;:153-153
Lojpur Vesna, Nikolić M., Mančić Lidija, Dramićanin Miroslav, Milošević Olivera, "Low temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3" ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract (2012):153-153

Up-converting characteristics of Y203:Yb/Er nanocrystalline powders obtained through spray pyrolysis

Mančić, Lidija; Lojpur, Vesna; Rabanal, Maria Eugenia; Dramićanin, Miroslav; Milošević, Olivera

(Beograd : Tehnološko-metalurški fakultet Univerziteta u Beogradu, 2012)

TY  - CONF
AU  - Mančić, Lidija
AU  - Lojpur, Vesna
AU  - Rabanal, Maria Eugenia
AU  - Dramićanin, Miroslav
AU  - Milošević, Olivera
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/535
AB  - Sub-micronic, spherical Y203:Yb/Er particles comprising clustered nano-units were prepared through ultrasonic spray pyrolysis of pure nitrate precursor solutions that contain different Yb/Er dopants ratio (10, 5 and 2). The particles obtained were additionally heat-treated at 1100°C for 12, 24 and 48 hours. Detailed structural and morphological analyses were done through X-ray powder diffraction (XRPD), scanning and transmission electron microscopy (SEM/TEM), specific surface area (BET), particle size distribution (LPS) and Fourier Transform Infrared Spectroscopy (FTIR). Obtained results are further correlated with advanced powder optical properties confirmed by efficient up-conversion emissions of Er3+in: blue (407-420 nm, 2H9/2→4I15/2), green (510-590 nm, 2H11/2, 4S3/2→4I15/2) and red (640-720 nm, 4F9/2→4I15/2) spectra. The corresponding lifetimes in the function of temperature will be also presented and discussed.
PB  - Beograd : Tehnološko-metalurški fakultet Univerziteta u Beogradu
C3  - First International Conference Processing, Characterization and Applications of Nanostructured Materials and Nanotechnology, [NanoBelgrade 2012] : 	Programme  & Book of Abstracts
T1  - Up-converting characteristics of Y203:Yb/Er nanocrystalline powders obtained through spray pyrolysis
SP  - 63
EP  - 63
ER  - 
@conference{
author = "Mančić, Lidija and Lojpur, Vesna and Rabanal, Maria Eugenia and Dramićanin, Miroslav and Milošević, Olivera",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/535",
abstract = "Sub-micronic, spherical Y203:Yb/Er particles comprising clustered nano-units were prepared through ultrasonic spray pyrolysis of pure nitrate precursor solutions that contain different Yb/Er dopants ratio (10, 5 and 2). The particles obtained were additionally heat-treated at 1100°C for 12, 24 and 48 hours. Detailed structural and morphological analyses were done through X-ray powder diffraction (XRPD), scanning and transmission electron microscopy (SEM/TEM), specific surface area (BET), particle size distribution (LPS) and Fourier Transform Infrared Spectroscopy (FTIR). Obtained results are further correlated with advanced powder optical properties confirmed by efficient up-conversion emissions of Er3+in: blue (407-420 nm, 2H9/2→4I15/2), green (510-590 nm, 2H11/2, 4S3/2→4I15/2) and red (640-720 nm, 4F9/2→4I15/2) spectra. The corresponding lifetimes in the function of temperature will be also presented and discussed.",
publisher = "Beograd : Tehnološko-metalurški fakultet Univerziteta u Beogradu",
journal = "First International Conference Processing, Characterization and Applications of Nanostructured Materials and Nanotechnology, [NanoBelgrade 2012] : 	Programme  & Book of Abstracts",
title = "Up-converting characteristics of Y203:Yb/Er nanocrystalline powders obtained through spray pyrolysis",
pages = "63-63"
}
Mančić, L., Lojpur, V., Rabanal, M. E., Dramićanin, M.,& Milošević, O. (2012). Up-converting characteristics of Y203:Yb/Er nanocrystalline powders obtained through spray pyrolysis.
First International Conference Processing, Characterization and Applications of Nanostructured Materials and Nanotechnology, [NanoBelgrade 2012] : 	Programme  & Book of Abstracts
Beograd : Tehnološko-metalurški fakultet Univerziteta u Beogradu., 63-63.
Mančić L, Lojpur V, Rabanal ME, Dramićanin M, Milošević O. Up-converting characteristics of Y203:Yb/Er nanocrystalline powders obtained through spray pyrolysis. First International Conference Processing, Characterization and Applications of Nanostructured Materials and Nanotechnology, [NanoBelgrade 2012] : 	Programme  & Book of Abstracts. 2012;:63-63
Mančić Lidija, Lojpur Vesna, Rabanal Maria Eugenia, Dramićanin Miroslav, Milošević Olivera, "Up-converting characteristics of Y203:Yb/Er nanocrystalline powders obtained through spray pyrolysis" First International Conference Processing, Characterization and Applications of Nanostructured Materials and Nanotechnology, [NanoBelgrade 2012] : 	Programme  & Book of Abstracts (2012):63-63

Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3 :Yb3+ fine powders

Lojpur, Vesna; Nikolić, M.; Mančić, Lidija; Dramićanin, Miroslav; Milošević, Olivera

(2012)

TY  - CONF
AU  - Lojpur, Vesna
AU  - Nikolić, M.
AU  - Mančić, Lidija
AU  - Dramićanin, Miroslav
AU  - Milošević, Olivera
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/136
AB  - Poster presented at the conference Advanced Ceramics and Application I - Serbian Ceramic Society, Belgrade May 10-11, 2012
T1  - Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3 :Yb3+ fine powders
ER  - 
@conference{
author = "Lojpur, Vesna and Nikolić, M. and Mančić, Lidija and Dramićanin, Miroslav and Milošević, Olivera",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/136",
abstract = "Poster presented at the conference Advanced Ceramics and Application I - Serbian Ceramic Society, Belgrade May 10-11, 2012",
title = "Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3 :Yb3+ fine powders"
}
Lojpur, V., Nikolić, M., Mančić, L., Dramićanin, M.,& Milošević, O. (2012). Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3 :Yb3+ fine powders.
.
Lojpur V, Nikolić M, Mančić L, Dramićanin M, Milošević O. Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3 :Yb3+ fine powders. 2012;
Lojpur Vesna, Nikolić M., Mančić Lidija, Dramićanin Miroslav, Milošević Olivera, "Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3 :Yb3+ fine powders" (2012)

The low temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3

Lojpur, Vesna; Nikolić, M.; Dramićanin, Miroslav; Mančić, Lidija; Milošević, Olivera

(2012)

TY  - CONF
AU  - Lojpur, Vesna
AU  - Nikolić, M.
AU  - Dramićanin, Miroslav
AU  - Mančić, Lidija
AU  - Milošević, Olivera
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/143
AB  - Poster presented at the Third International Conference on the Physics of Optical Materials and Devices (ICOM 2012), September 3-6, Belgrade, Serbia
T1  - The low temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3
ER  - 
@conference{
author = "Lojpur, Vesna and Nikolić, M. and Dramićanin, Miroslav and Mančić, Lidija and Milošević, Olivera",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/143",
abstract = "Poster presented at the Third International Conference on the Physics of Optical Materials and Devices (ICOM 2012), September 3-6, Belgrade, Serbia",
title = "The low temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3"
}
Lojpur, V., Nikolić, M., Dramićanin, M., Mančić, L.,& Milošević, O. (2012). The low temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3.
.
Lojpur V, Nikolić M, Dramićanin M, Mančić L, Milošević O. The low temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3. 2012;
Lojpur Vesna, Nikolić M., Dramićanin Miroslav, Mančić Lidija, Milošević Olivera, "The low temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3" (2012)

Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3:Yb3+ fine powders obtained through aerosol decomposition

Lojpur, Vesna; Nikolić, M.; Mančić, Lidija; Milošević, Olivera; Dramićanin, Miroslav

(Elsevier, 2012)

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Nikolić, M.
AU  - Mančić, Lidija
AU  - Milošević, Olivera
AU  - Dramićanin, Miroslav
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/474
AB  - Fine yttrium oxide powders doped with Yb3+ and co-doped either with Tm3+ or Ho3+ were synthesized via spray pyrolysis at 900 °C using 0.1 M nitrate precursor. Synthesized powders were additionally thermally treated at 1100 °C for 24 h. The characterization was done through X-ray powder diffraction (XRPD), scanning electron microscopy (SEM) and photoluminescent measurements (PL). Generation of cubic bixbyte-structure with space group Ia-3 is confirmed in all samples. Spherical particles with the mean size of ∼400 nm, generated through volume precipitation of much smaller nanograins, expose certain degree of porosity which alters particle morphology during additional thermal treatment. Powders optical characterizations include measurement of up-conversion emission spectra after excitation at 978 nm, as well as determination of emission lifetimes and up-converted emission intensity dependence on excitation power. Dominant green (5F4, 5S2 → 5I8) and blue (1G4 → 3H6) emission is found for Ho3+ and Tm3+ samples, respectively. The amplified emission intensities and enhanced lifetime in thermally treated samples are correlated with the powders morphological and structural changes.
PB  - Elsevier
T2  - Optical Materials
T1  - Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3:Yb3+ fine powders obtained through aerosol decomposition
SP  - 38
EP  - 44
VL  - 35
IS  - 1
DO  - 10.1016/j.optmat.2012.06.019
ER  - 
@article{
author = "Lojpur, Vesna and Nikolić, M. and Mančić, Lidija and Milošević, Olivera and Dramićanin, Miroslav",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/474",
abstract = "Fine yttrium oxide powders doped with Yb3+ and co-doped either with Tm3+ or Ho3+ were synthesized via spray pyrolysis at 900 °C using 0.1 M nitrate precursor. Synthesized powders were additionally thermally treated at 1100 °C for 24 h. The characterization was done through X-ray powder diffraction (XRPD), scanning electron microscopy (SEM) and photoluminescent measurements (PL). Generation of cubic bixbyte-structure with space group Ia-3 is confirmed in all samples. Spherical particles with the mean size of ∼400 nm, generated through volume precipitation of much smaller nanograins, expose certain degree of porosity which alters particle morphology during additional thermal treatment. Powders optical characterizations include measurement of up-conversion emission spectra after excitation at 978 nm, as well as determination of emission lifetimes and up-converted emission intensity dependence on excitation power. Dominant green (5F4, 5S2 → 5I8) and blue (1G4 → 3H6) emission is found for Ho3+ and Tm3+ samples, respectively. The amplified emission intensities and enhanced lifetime in thermally treated samples are correlated with the powders morphological and structural changes.",
publisher = "Elsevier",
journal = "Optical Materials",
title = "Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3:Yb3+ fine powders obtained through aerosol decomposition",
pages = "38-44",
volume = "35",
number = "1",
doi = "10.1016/j.optmat.2012.06.019"
}
Lojpur, V., Nikolić, M., Mančić, L., Milošević, O.,& Dramićanin, M. (2012). Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3:Yb3+ fine powders obtained through aerosol decomposition.
Optical Materials
Elsevier., 35(1), 38-44.
https://doi.org/10.1016/j.optmat.2012.06.019
Lojpur V, Nikolić M, Mančić L, Milošević O, Dramićanin M. Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3:Yb3+ fine powders obtained through aerosol decomposition. Optical Materials. 2012;35(1):38-44
Lojpur Vesna, Nikolić M., Mančić Lidija, Milošević Olivera, Dramićanin Miroslav, "Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3:Yb3+ fine powders obtained through aerosol decomposition" Optical Materials, 35, no. 1 (2012):38-44,
https://doi.org/10.1016/j.optmat.2012.06.019 .
10
13
13

Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route

Mančić, Lidija; Lojpur, Vesna; Barroso, Ignacio; Rabanal, Maria Eugenia; Milošević, Olivera

(Hoboken, NJ : John Wiley & Sons, 2012)

TY  - JOUR
AU  - Mančić, Lidija
AU  - Lojpur, Vesna
AU  - Barroso, Ignacio
AU  - Rabanal, Maria Eugenia
AU  - Milošević, Olivera
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/477
AB  - Polycrystalline fine powders of yttrium aluminate doped with Ce3+ were synthesised by spray pyrolysis of a polymeric precursor, which was obtained by dissolving the corresponding nitrates in a solution of ethylenediaminetetraacetic acid (EDTA) in ethylene glycol (EG). Aerosol decomposition was performed at 550 °C followed by an additional thermal treatment (900–1100 °C). The yield of either a single yttrium aluminium perovskite (YAP) phase or a single yttrium aluminium garnet (YAG) phase was investigated as a function of the predefined yttrium/aluminium ratio, the cerium doping concentration, the processing temperature, and the thermal-treatment regime, which included the variation of the heating and cooling rates (dT/dt), the residence time (τ), and the atmosphere. Changes in the composition and structure of the precursor during thermal decomposition were investigated by thermogravimetric and differential thermal analysis (TGA/DTA) and FTIR spectroscopy. The particle morphology and structure were analysed by a combination of scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM/EDS) and by high-resolution transmission electron microscopy (HR-TEM). The structural refinement was based on the phase identification performed by X-ray powder diffraction (XRPD). The emission spectra were recorded within the range 325–800 nm by applying excitation wavelengths of 297 (YAP) and 450 nm (YAG). The employed synthesis conditions assured the formation of spherical, non-agglomerated particles with well-developed surfaces and diameters between 200 and 800 nm. For a predefined Y/Al ratio of 1:1, lower processing temperatures combined with longer heat treatments under stationary conditions resulted in a multiphase system, composed of YAP, YAG, and monoclinic yttrium aluminate (YAM) phases. However, a short heat treatment with a high heating rate (200 °C/min) at higher temperatures results in the formation of a kinetically favoured pure YAP hexagonal phase. On the other hand, for a predefined Y/Al ratio of 3:5, the generation of a thermodynamically favoured pure YAG phase has been confirmed, regardless of the applied heat-treatment conditions. Although incomplete, Ce3+ introduction into the host matrix has been detected by XRPD and luminescence measurements.
PB  - Hoboken, NJ : John Wiley & Sons
T2  - European Journal of Inorganic Chemistry
T1  - Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route
SP  - 2716
EP  - 2724
DO  - 10.1002/ejic.201101053
ER  - 
@article{
author = "Mančić, Lidija and Lojpur, Vesna and Barroso, Ignacio and Rabanal, Maria Eugenia and Milošević, Olivera",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/477",
abstract = "Polycrystalline fine powders of yttrium aluminate doped with Ce3+ were synthesised by spray pyrolysis of a polymeric precursor, which was obtained by dissolving the corresponding nitrates in a solution of ethylenediaminetetraacetic acid (EDTA) in ethylene glycol (EG). Aerosol decomposition was performed at 550 °C followed by an additional thermal treatment (900–1100 °C). The yield of either a single yttrium aluminium perovskite (YAP) phase or a single yttrium aluminium garnet (YAG) phase was investigated as a function of the predefined yttrium/aluminium ratio, the cerium doping concentration, the processing temperature, and the thermal-treatment regime, which included the variation of the heating and cooling rates (dT/dt), the residence time (τ), and the atmosphere. Changes in the composition and structure of the precursor during thermal decomposition were investigated by thermogravimetric and differential thermal analysis (TGA/DTA) and FTIR spectroscopy. The particle morphology and structure were analysed by a combination of scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM/EDS) and by high-resolution transmission electron microscopy (HR-TEM). The structural refinement was based on the phase identification performed by X-ray powder diffraction (XRPD). The emission spectra were recorded within the range 325–800 nm by applying excitation wavelengths of 297 (YAP) and 450 nm (YAG). The employed synthesis conditions assured the formation of spherical, non-agglomerated particles with well-developed surfaces and diameters between 200 and 800 nm. For a predefined Y/Al ratio of 1:1, lower processing temperatures combined with longer heat treatments under stationary conditions resulted in a multiphase system, composed of YAP, YAG, and monoclinic yttrium aluminate (YAM) phases. However, a short heat treatment with a high heating rate (200 °C/min) at higher temperatures results in the formation of a kinetically favoured pure YAP hexagonal phase. On the other hand, for a predefined Y/Al ratio of 3:5, the generation of a thermodynamically favoured pure YAG phase has been confirmed, regardless of the applied heat-treatment conditions. Although incomplete, Ce3+ introduction into the host matrix has been detected by XRPD and luminescence measurements.",
publisher = "Hoboken, NJ : John Wiley & Sons",
journal = "European Journal of Inorganic Chemistry",
title = "Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route",
pages = "2716-2724",
doi = "10.1002/ejic.201101053"
}
Mančić, L., Lojpur, V., Barroso, I., Rabanal, M. E.,& Milošević, O. (2012). Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route.
European Journal of Inorganic Chemistry
Hoboken, NJ : John Wiley & Sons., 2716-2724.
https://doi.org/10.1002/ejic.201101053
Mančić L, Lojpur V, Barroso I, Rabanal ME, Milošević O. Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route. European Journal of Inorganic Chemistry. 2012;:2716-2724
Mančić Lidija, Lojpur Vesna, Barroso Ignacio, Rabanal Maria Eugenia, Milošević Olivera, "Synthesis of Cerium-Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route" European Journal of Inorganic Chemistry (2012):2716-2724,
https://doi.org/10.1002/ejic.201101053 .
1
9
10
12

Influence of thermal treatment on structural, morphological and optical characteristics of upconvertors

Lojpur, Vesna; Mančić, Lidija; Rabanal, Maria Eugenia; Dramićanin, Miroslav; Milošević, Olivera

(Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, 2011)

TY  - CONF
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
AU  - Rabanal, Maria Eugenia
AU  - Dramićanin, Miroslav
AU  - Milošević, Olivera
PY  - 2011
UR  - http://dais.sanu.ac.rs/123456789/695
AB  - The upconverting phosphors are materials of great interest for optoelectronics operating in the near infrared region. The preparation of highly spherical Y2O3:Yb,Er particles are synthesized via spray pyrolysis from common nitrate solution with fixed dopants ratio of Yb/Er=10. The processing conditions are as follows: precursor concentration 0.1M, atomization frequency 1.3 MHz, temperature regime 200-900-900°C and air flow rate 1,6 dm3/min. The as-prepared particles collected in the electrostatic precipitator are additionally thermally treated at 1100 °C for 12, 24 and 48 hours. Detailed structural analyses are performed by X-ray powder diffraction (XRPD) based on which the structural refinement is done using Topas Academic Software. The results imply that with the increase of calcination time crystallite size increasing along with microstrain diminishing. The particle morphological characteristics are studied by scanning electron microscopy (SEM) and are further correlated with specific surface area (BET), size distribution (LPS) and optical properties followed through photoluminescence measurements (PL).
PB  - Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts
C3  - Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
T1  - Influence of thermal treatment on structural, morphological and optical characteristics of upconvertors
SP  - 38
EP  - 38
ER  - 
@conference{
author = "Lojpur, Vesna and Mančić, Lidija and Rabanal, Maria Eugenia and Dramićanin, Miroslav and Milošević, Olivera",
year = "2011",
url = "http://dais.sanu.ac.rs/123456789/695",
abstract = "The upconverting phosphors are materials of great interest for optoelectronics operating in the near infrared region. The preparation of highly spherical Y2O3:Yb,Er particles are synthesized via spray pyrolysis from common nitrate solution with fixed dopants ratio of Yb/Er=10. The processing conditions are as follows: precursor concentration 0.1M, atomization frequency 1.3 MHz, temperature regime 200-900-900°C and air flow rate 1,6 dm3/min. The as-prepared particles collected in the electrostatic precipitator are additionally thermally treated at 1100 °C for 12, 24 and 48 hours. Detailed structural analyses are performed by X-ray powder diffraction (XRPD) based on which the structural refinement is done using Topas Academic Software. The results imply that with the increase of calcination time crystallite size increasing along with microstrain diminishing. The particle morphological characteristics are studied by scanning electron microscopy (SEM) and are further correlated with specific surface area (BET), size distribution (LPS) and optical properties followed through photoluminescence measurements (PL).",
publisher = "Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts",
journal = "Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia",
title = "Influence of thermal treatment on structural, morphological and optical characteristics of upconvertors",
pages = "38-38"
}
Lojpur, V., Mančić, L., Rabanal, M. E., Dramićanin, M.,& Milošević, O. (2011). Influence of thermal treatment on structural, morphological and optical characteristics of upconvertors.
Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts., 38-38.
Lojpur V, Mančić L, Rabanal ME, Dramićanin M, Milošević O. Influence of thermal treatment on structural, morphological and optical characteristics of upconvertors. Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia. 2011;:38-38
Lojpur Vesna, Mančić Lidija, Rabanal Maria Eugenia, Dramićanin Miroslav, Milošević Olivera, "Influence of thermal treatment on structural, morphological and optical characteristics of upconvertors" Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia (2011):38-38

Synthesis of the Nanostructured YAP:Ce via Spray Pyrolysis by Polymeric Precursor Solution

Lojpur, Vesna; Mančić, Lidija; Rabanal, Maria Eugenia; Milošević, Olivera

(2011)

TY  - CONF
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
AU  - Rabanal, Maria Eugenia
AU  - Milošević, Olivera
PY  - 2011
UR  - http://dais.sanu.ac.rs/123456789/156
AB  - Poster presented at the 13th Annual Conference of the Materials Research Society of Serbia - YUCOMAT 2011, Herceg Novi, Montenegro, September 5–9, 2011
T1  - Synthesis of the Nanostructured YAP:Ce via Spray Pyrolysis by Polymeric Precursor Solution
ER  - 
@conference{
author = "Lojpur, Vesna and Mančić, Lidija and Rabanal, Maria Eugenia and Milošević, Olivera",
year = "2011",
url = "http://dais.sanu.ac.rs/123456789/156",
abstract = "Poster presented at the 13th Annual Conference of the Materials Research Society of Serbia - YUCOMAT 2011, Herceg Novi, Montenegro, September 5–9, 2011",
title = "Synthesis of the Nanostructured YAP:Ce via Spray Pyrolysis by Polymeric Precursor Solution"
}
Lojpur, V., Mančić, L., Rabanal, M. E.,& Milošević, O. (2011). Synthesis of the Nanostructured YAP:Ce via Spray Pyrolysis by Polymeric Precursor Solution.
.
Lojpur V, Mančić L, Rabanal ME, Milošević O. Synthesis of the Nanostructured YAP:Ce via Spray Pyrolysis by Polymeric Precursor Solution. 2011;
Lojpur Vesna, Mančić Lidija, Rabanal Maria Eugenia, Milošević Olivera, "Synthesis of the Nanostructured YAP:Ce via Spray Pyrolysis by Polymeric Precursor Solution" (2011)