TY  - JOUR
AU  - Rabanal, Maria Eugenia
AU  - Gómez, Luz Stella
AU  - Khalifa, A.
AU  - Torralba, Jose Manuel
AU  - Mančić, Lidija
AU  - Milošević, Olivera
PY  - 2007
UR  - https://dais.sanu.ac.rs/123456789/15210
AB  - High purity europium-doped gadolinia (Gd2O3:Eu3+) have been prepared using spray pyrolysis technique yielding nanostructured non-agglomerated particles with spherical morphology. Comparative microstructural analysis was done for different europium concentrations. The particle homogeneity, crystallization and nanostructure development were analyzed using XRD, TEM-HRTEM and EFTEM. The existence of two different cubic phases has been identified in as-prepared samples: a bcc (SG Ia3) and a fcc (Fm-3m). After the thermal treatment only the cubic Ia3 phase has been observed with the cell parameters affected with Eu3+ doping concentration and temperature, followed with progressive increase in crystallite size.
PB  - Elsevier BV
T2  - Journal of the European Ceramic Society
T1  - Structural properties of europia-doped-gadolinia synthesized through aerosol
SP  - 4325
EP  - 4328
VL  - 27
IS  - 13-15
DO  - 10.1016/j.jeurceramsoc.2007.02.151
UR  - https://hdl.handle.net/21.15107/rcub_dais_15210
ER  - 

@article{
author = "Rabanal, Maria Eugenia and Gómez, Luz Stella and Khalifa, A. and Torralba, Jose Manuel and Mančić, Lidija and Milošević, Olivera",
year = "2007",
abstract = "High purity europium-doped gadolinia (Gd2O3:Eu3+) have been prepared using spray pyrolysis technique yielding nanostructured non-agglomerated particles with spherical morphology. Comparative microstructural analysis was done for different europium concentrations. The particle homogeneity, crystallization and nanostructure development were analyzed using XRD, TEM-HRTEM and EFTEM. The existence of two different cubic phases has been identified in as-prepared samples: a bcc (SG Ia3) and a fcc (Fm-3m). After the thermal treatment only the cubic Ia3 phase has been observed with the cell parameters affected with Eu3+ doping concentration and temperature, followed with progressive increase in crystallite size.",
publisher = "Elsevier BV",
journal = "Journal of the European Ceramic Society",
title = "Structural properties of europia-doped-gadolinia synthesized through aerosol",
pages = "4325-4328",
volume = "27",
number = "13-15",
doi = "10.1016/j.jeurceramsoc.2007.02.151",
url = "https://hdl.handle.net/21.15107/rcub_dais_15210"
}

Rabanal, M. E., Gómez, L. S., Khalifa, A., Torralba, J. M., Mančić, L.,& Milošević, O.. (2007). Structural properties of europia-doped-gadolinia synthesized through aerosol. in Journal of the European Ceramic Society
Elsevier BV., 27(13-15), 4325-4328.
https://doi.org/10.1016/j.jeurceramsoc.2007.02.151
https://hdl.handle.net/21.15107/rcub_dais_15210

Rabanal ME, Gómez LS, Khalifa A, Torralba JM, Mančić L, Milošević O. Structural properties of europia-doped-gadolinia synthesized through aerosol. in Journal of the European Ceramic Society. 2007;27(13-15):4325-4328.
doi:10.1016/j.jeurceramsoc.2007.02.151
https://hdl.handle.net/21.15107/rcub_dais_15210 .

Rabanal, Maria Eugenia, Gómez, Luz Stella, Khalifa, A., Torralba, Jose Manuel, Mančić, Lidija, Milošević, Olivera, "Structural properties of europia-doped-gadolinia synthesized through aerosol" in Journal of the European Ceramic Society, 27, no. 13-15 (2007):4325-4328,
https://doi.org/10.1016/j.jeurceramsoc.2007.02.151 .,
https://hdl.handle.net/21.15107/rcub_dais_15210 .

TY  - JOUR
AU  - Milošević, Olivera
AU  - Mančić, Lidija
AU  - Rabanal, Maria Eugenia
AU  - Torralba, Jose Manuel
AU  - Yang, Bairui
AU  - Townsend, Peter
PY  - 2005
UR  - https://dais.sanu.ac.rs/123456789/15209
AB  - Opportunities for the synthesis of ultrafine spherical particles with uniformly distributed components and phases are of special importance when materials for photonic application are considered. In this study, the nanophase, spherical, luminescent polycrystalline and YAG:Ce particles were synthesized from aerosols of the corresponding nitrate solutions ultrasonically generated with frequencies of and , respectively. Detailed phase and structural analysis, compositional homogeneity, and particle morphology were determined in accordance to X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). Quantitative SEM/EDS analysis indicated high material purity and compositional homogeneity. The phase development and structural changes imply nanocrystalline inner structure (crystallites below after thermal treating), which influences luminescence behavior. Luminescence measurements indicate that both the radioluminescence and thermoluminescence emission spectra of the are totally dominated by the line emission characteristic of the Eu, fully substituted onto host lattice sites. By contrast, the cerium dopants in YAG display only very weak Ce luminescence after annealing, but there are broad emission bands characteristic of host lattice defect sites. The spectra are clearly altered by heat treatments and the thermoluminescence indicates a range of independent defect emission sites.
PB  - The Electrochemical Society
T2  - Journal of The Electrochemical Society
T1  - Structural and Luminescence Properties of Gd2O 3:Eu3+ and Y3Al5O12:Ce3+ Phosphor Particles Synthesized via Aerosol
SP  - G707
VL  - 152
IS  - 9
DO  - 10.1149/1.1972319
UR  - https://hdl.handle.net/21.15107/rcub_dais_15209
ER  - 

@article{
author = "Milošević, Olivera and Mančić, Lidija and Rabanal, Maria Eugenia and Torralba, Jose Manuel and Yang, Bairui and Townsend, Peter",
year = "2005",
abstract = "Opportunities for the synthesis of ultrafine spherical particles with uniformly distributed components and phases are of special importance when materials for photonic application are considered. In this study, the nanophase, spherical, luminescent polycrystalline and YAG:Ce particles were synthesized from aerosols of the corresponding nitrate solutions ultrasonically generated with frequencies of and , respectively. Detailed phase and structural analysis, compositional homogeneity, and particle morphology were determined in accordance to X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). Quantitative SEM/EDS analysis indicated high material purity and compositional homogeneity. The phase development and structural changes imply nanocrystalline inner structure (crystallites below after thermal treating), which influences luminescence behavior. Luminescence measurements indicate that both the radioluminescence and thermoluminescence emission spectra of the are totally dominated by the line emission characteristic of the Eu, fully substituted onto host lattice sites. By contrast, the cerium dopants in YAG display only very weak Ce luminescence after annealing, but there are broad emission bands characteristic of host lattice defect sites. The spectra are clearly altered by heat treatments and the thermoluminescence indicates a range of independent defect emission sites.",
publisher = "The Electrochemical Society",
journal = "Journal of The Electrochemical Society",
title = "Structural and Luminescence Properties of Gd2O 3:Eu3+ and Y3Al5O12:Ce3+ Phosphor Particles Synthesized via Aerosol",
pages = "G707",
volume = "152",
number = "9",
doi = "10.1149/1.1972319",
url = "https://hdl.handle.net/21.15107/rcub_dais_15209"
}

Milošević, O., Mančić, L., Rabanal, M. E., Torralba, J. M., Yang, B.,& Townsend, P.. (2005). Structural and Luminescence Properties of Gd2O 3:Eu3+ and Y3Al5O12:Ce3+ Phosphor Particles Synthesized via Aerosol. in Journal of The Electrochemical Society
The Electrochemical Society., 152(9), G707.
https://doi.org/10.1149/1.1972319
https://hdl.handle.net/21.15107/rcub_dais_15209

Milošević O, Mančić L, Rabanal ME, Torralba JM, Yang B, Townsend P. Structural and Luminescence Properties of Gd2O 3:Eu3+ and Y3Al5O12:Ce3+ Phosphor Particles Synthesized via Aerosol. in Journal of The Electrochemical Society. 2005;152(9):G707.
doi:10.1149/1.1972319
https://hdl.handle.net/21.15107/rcub_dais_15209 .

Milošević, Olivera, Mančić, Lidija, Rabanal, Maria Eugenia, Torralba, Jose Manuel, Yang, Bairui, Townsend, Peter, "Structural and Luminescence Properties of Gd2O 3:Eu3+ and Y3Al5O12:Ce3+ Phosphor Particles Synthesized via Aerosol" in Journal of The Electrochemical Society, 152, no. 9 (2005):G707,
https://doi.org/10.1149/1.1972319 .,
https://hdl.handle.net/21.15107/rcub_dais_15209 .

TY  - JOUR
AU  - Rabanal, Maria Eugenia
AU  - Moral, C.
AU  - Torralba, Jose Manuel
AU  - Mančić, Lidija
AU  - Milošević, Olivera
PY  - 2005
UR  - https://dais.sanu.ac.rs/123456789/15208
AB  - In this work, the influence of the Eu3+ luminescence center concentration on the structural, morphological and spectroscopic properties of powders obtained by an aerosol method was studied. In the method, gadolinium and europium nitrate solutions were ultrasonically aerosolised and fed into a high-temperature (up to 1200 °C) tubular flow reactor to control the aerosol decomposition. During decomposition, the aerosol droplets undergo evaporation/drying, precipitation and thermolysis in a single-step continuous process. Spherical, solid, agglomerate-free, submicron-sized particles with the crystallite sizes below 20 nm have been obtained. In order to control the particle crystal structure and to establish the conditions for the stabilization of the low-temperature gadolinia cubic phase, process parameters such as synthesis temperature, droplet/particle residence time and annealing temperatures were varied. The particle morphology, phase and chemical structure were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and EDS. Structural changes (crystallite size and microstrains) after powders thermal treatment were carried out using the Koalariet-XFit program as the profile-matching tool.  The results obtained and the mechanisms for ultrafine phosphor particle generation are discussed in terms of precursor chemistry, process parameters and luminescence properties.
PB  - Elsevier BV
T2  - Journal of the European Ceramic Society
T1  - Gd2O3:Eu3+ phosphor particles processed through aerosol route
SP  - 2023
EP  - 2027
VL  - 25
IS  - 12
DO  - 10.1016/j.jeurceramsoc.2005.03.183
UR  - https://hdl.handle.net/21.15107/rcub_dais_15208
ER  - 

@article{
author = "Rabanal, Maria Eugenia and Moral, C. and Torralba, Jose Manuel and Mančić, Lidija and Milošević, Olivera",
year = "2005",
abstract = "In this work, the influence of the Eu3+ luminescence center concentration on the structural, morphological and spectroscopic properties of powders obtained by an aerosol method was studied. In the method, gadolinium and europium nitrate solutions were ultrasonically aerosolised and fed into a high-temperature (up to 1200 °C) tubular flow reactor to control the aerosol decomposition. During decomposition, the aerosol droplets undergo evaporation/drying, precipitation and thermolysis in a single-step continuous process. Spherical, solid, agglomerate-free, submicron-sized particles with the crystallite sizes below 20 nm have been obtained. In order to control the particle crystal structure and to establish the conditions for the stabilization of the low-temperature gadolinia cubic phase, process parameters such as synthesis temperature, droplet/particle residence time and annealing temperatures were varied. The particle morphology, phase and chemical structure were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and EDS. Structural changes (crystallite size and microstrains) after powders thermal treatment were carried out using the Koalariet-XFit program as the profile-matching tool.  The results obtained and the mechanisms for ultrafine phosphor particle generation are discussed in terms of precursor chemistry, process parameters and luminescence properties.",
publisher = "Elsevier BV",
journal = "Journal of the European Ceramic Society",
title = "Gd2O3:Eu3+ phosphor particles processed through aerosol route",
pages = "2023-2027",
volume = "25",
number = "12",
doi = "10.1016/j.jeurceramsoc.2005.03.183",
url = "https://hdl.handle.net/21.15107/rcub_dais_15208"
}

Rabanal, M. E., Moral, C., Torralba, J. M., Mančić, L.,& Milošević, O.. (2005). Gd2O3:Eu3+ phosphor particles processed through aerosol route. in Journal of the European Ceramic Society
Elsevier BV., 25(12), 2023-2027.
https://doi.org/10.1016/j.jeurceramsoc.2005.03.183
https://hdl.handle.net/21.15107/rcub_dais_15208

Rabanal ME, Moral C, Torralba JM, Mančić L, Milošević O. Gd2O3:Eu3+ phosphor particles processed through aerosol route. in Journal of the European Ceramic Society. 2005;25(12):2023-2027.
doi:10.1016/j.jeurceramsoc.2005.03.183
https://hdl.handle.net/21.15107/rcub_dais_15208 .

Rabanal, Maria Eugenia, Moral, C., Torralba, Jose Manuel, Mančić, Lidija, Milošević, Olivera, "Gd2O3:Eu3+ phosphor particles processed through aerosol route" in Journal of the European Ceramic Society, 25, no. 12 (2005):2023-2027,
https://doi.org/10.1016/j.jeurceramsoc.2005.03.183 .,
https://hdl.handle.net/21.15107/rcub_dais_15208 .