TY  - JOUR
AU  - Stamenković, Tijana
AU  - Radmilović, Nadežda
AU  - Prekajski-Đorđević, Marija D.
AU  - Rabasović, Mihailo
AU  - Dinić, Ivana
AU  - Tomić, Miloš
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/13491
AB  - Nanopowders of up-conversion SrGd2O4 orthorhombic (Pnma) phase co-doped with different Yb3+ (1, 2.5 and 5 at%) and constant Er3+ (0.5 at%) ions were successfully prepared via sol-gel assisted combustion. Rietveld refinement indicated unit cell lattice parameters increase with Yb3+ and Er3+ ions doping. Scanning transmission electron microscopy with corresponding energy-dispersive X-ray spectroscopy revealed that obtained powders are composed of agglomerated nanoparticles that have a uniform distribution of all constituting elements. Photoluminescence measurements implied intensification of the up-conversion (UC) emission in the visible part of spectrum with the increase of Yb3+ content, which is followed by a significant change in the green to red ratio. Two-photon UC processes are established as a result of Er3+ f-f electronic transitions: green emission at 523 and 551 nm (2H11/2, 4S3/2 → 4I15/2) as well as a red emission at 661 nm (4F9/2 → 4I15/2). The highest value of absolute quantum yield of 0.055% is determined for SrGd2O4 nanoparticles doped with 0.5 at% of Er3+ and co-doped with 5 at% of Yb3+ (λexc = 976 nm, power density 200 W/cm2).
T2  - Journal of Luminescence
T1  - Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion
SP  - 119491
VL  - 253
DO  - 10.1016/j.jlumin.2022.119491
UR  - https://hdl.handle.net/21.15107/rcub_dais_13491
ER  - 

@article{
author = "Stamenković, Tijana and Radmilović, Nadežda and Prekajski-Đorđević, Marija D. and Rabasović, Mihailo and Dinić, Ivana and Tomić, Miloš and Lojpur, Vesna and Mančić, Lidija",
year = "2023",
abstract = "Nanopowders of up-conversion SrGd2O4 orthorhombic (Pnma) phase co-doped with different Yb3+ (1, 2.5 and 5 at%) and constant Er3+ (0.5 at%) ions were successfully prepared via sol-gel assisted combustion. Rietveld refinement indicated unit cell lattice parameters increase with Yb3+ and Er3+ ions doping. Scanning transmission electron microscopy with corresponding energy-dispersive X-ray spectroscopy revealed that obtained powders are composed of agglomerated nanoparticles that have a uniform distribution of all constituting elements. Photoluminescence measurements implied intensification of the up-conversion (UC) emission in the visible part of spectrum with the increase of Yb3+ content, which is followed by a significant change in the green to red ratio. Two-photon UC processes are established as a result of Er3+ f-f electronic transitions: green emission at 523 and 551 nm (2H11/2, 4S3/2 → 4I15/2) as well as a red emission at 661 nm (4F9/2 → 4I15/2). The highest value of absolute quantum yield of 0.055% is determined for SrGd2O4 nanoparticles doped with 0.5 at% of Er3+ and co-doped with 5 at% of Yb3+ (λexc = 976 nm, power density 200 W/cm2).",
journal = "Journal of Luminescence",
title = "Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion",
pages = "119491",
volume = "253",
doi = "10.1016/j.jlumin.2022.119491",
url = "https://hdl.handle.net/21.15107/rcub_dais_13491"
}

Stamenković, T., Radmilović, N., Prekajski-Đorđević, M. D., Rabasović, M., Dinić, I., Tomić, M., Lojpur, V.,& Mančić, L.. (2023). Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion. in Journal of Luminescence, 253, 119491.
https://doi.org/10.1016/j.jlumin.2022.119491
https://hdl.handle.net/21.15107/rcub_dais_13491

Stamenković T, Radmilović N, Prekajski-Đorđević MD, Rabasović M, Dinić I, Tomić M, Lojpur V, Mančić L. Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion. in Journal of Luminescence. 2023;253:119491.
doi:10.1016/j.jlumin.2022.119491
https://hdl.handle.net/21.15107/rcub_dais_13491 .

Stamenković, Tijana, Radmilović, Nadežda, Prekajski-Đorđević, Marija D., Rabasović, Mihailo, Dinić, Ivana, Tomić, Miloš, Lojpur, Vesna, Mančić, Lidija, "Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion" in Journal of Luminescence, 253 (2023):119491,
https://doi.org/10.1016/j.jlumin.2022.119491 .,
https://hdl.handle.net/21.15107/rcub_dais_13491 .

TY  - JOUR
AU  - Stamenković, Tijana
AU  - Radmilović, Nadežda
AU  - Prekajski Đorđević, Marija D.
AU  - Rabasović, Mihailo
AU  - Dinić, Ivana
AU  - Tomić, Miloš
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/14550
AB  - Nanopowders of up-conversion SrGd2O4 orthorhombic (Pnma) phase co-doped with different Yb3+ (1, 2.5 and 5 at%) and constant Er3+ (0.5 at%) ions were successfully prepared via sol-gel assisted combustion. Rietveld refinement indicated unit cell lattice parameters increase with Yb3+ and Er3+ ions doping. Scanning transmission electron microscopy with corresponding energy-dispersive X-ray spectroscopy revealed that obtained powders are composed of agglomerated nanoparticles that have a uniform distribution of all constituting elements. Photoluminescence measurements implied intensification of the up-conversion (UC) emission in the visible part of spectrum with the increase of Yb3+ content, which is followed by a significant change in the green to red ratio. Two-photon UC processes are established as a result of Er3+ f-f electronic transitions: green emission at 523 and 551 nm (2H11/2, 4S3/2 → 4I15/2) as well as a red emission at 661 nm (4F9/2 → 4I15/2). The highest value of absolute quantum yield of 0.055% is determined for SrGd2O4 nanoparticles doped with 0.5 at% of Er3+ and co-doped with 5 at% of Yb3+ (λexc = 976 nm, power density 200 W/cm2).
T2  - Journal of Luminescence
T1  - Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion
SP  - 119491
VL  - 253
DO  - 10.1016/j.jlumin.2022.119491
UR  - https://hdl.handle.net/21.15107/rcub_dais_13491
ER  - 

@article{
author = "Stamenković, Tijana and Radmilović, Nadežda and Prekajski Đorđević, Marija D. and Rabasović, Mihailo and Dinić, Ivana and Tomić, Miloš and Lojpur, Vesna and Mančić, Lidija",
year = "2023",
abstract = "Nanopowders of up-conversion SrGd2O4 orthorhombic (Pnma) phase co-doped with different Yb3+ (1, 2.5 and 5 at%) and constant Er3+ (0.5 at%) ions were successfully prepared via sol-gel assisted combustion. Rietveld refinement indicated unit cell lattice parameters increase with Yb3+ and Er3+ ions doping. Scanning transmission electron microscopy with corresponding energy-dispersive X-ray spectroscopy revealed that obtained powders are composed of agglomerated nanoparticles that have a uniform distribution of all constituting elements. Photoluminescence measurements implied intensification of the up-conversion (UC) emission in the visible part of spectrum with the increase of Yb3+ content, which is followed by a significant change in the green to red ratio. Two-photon UC processes are established as a result of Er3+ f-f electronic transitions: green emission at 523 and 551 nm (2H11/2, 4S3/2 → 4I15/2) as well as a red emission at 661 nm (4F9/2 → 4I15/2). The highest value of absolute quantum yield of 0.055% is determined for SrGd2O4 nanoparticles doped with 0.5 at% of Er3+ and co-doped with 5 at% of Yb3+ (λexc = 976 nm, power density 200 W/cm2).",
journal = "Journal of Luminescence",
title = "Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion",
pages = "119491",
volume = "253",
doi = "10.1016/j.jlumin.2022.119491",
url = "https://hdl.handle.net/21.15107/rcub_dais_13491"
}

Stamenković, T., Radmilović, N., Prekajski Đorđević, M. D., Rabasović, M., Dinić, I., Tomić, M., Lojpur, V.,& Mančić, L.. (2023). Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion. in Journal of Luminescence, 253, 119491.
https://doi.org/10.1016/j.jlumin.2022.119491
https://hdl.handle.net/21.15107/rcub_dais_13491

Stamenković T, Radmilović N, Prekajski Đorđević MD, Rabasović M, Dinić I, Tomić M, Lojpur V, Mančić L. Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion. in Journal of Luminescence. 2023;253:119491.
doi:10.1016/j.jlumin.2022.119491
https://hdl.handle.net/21.15107/rcub_dais_13491 .

Stamenković, Tijana, Radmilović, Nadežda, Prekajski Đorđević, Marija D., Rabasović, Mihailo, Dinić, Ivana, Tomić, Miloš, Lojpur, Vesna, Mančić, Lidija, "Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion" in Journal of Luminescence, 253 (2023):119491,
https://doi.org/10.1016/j.jlumin.2022.119491 .,
https://hdl.handle.net/21.15107/rcub_dais_13491 .

TY  - CONF
AU  - Stamenković, Tijana
AU  - Radmilović, Nadežda
AU  - Prekajski Đorđević, Marija
AU  - Dinić, Ivana
AU  - Mančić, Lidija
AU  - Lojpur, Vesna
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12277
AB  - In this work we present new up-conversion materials, consisted of SrGd2O4 matrix co-doped with different Yb3+ (1, 2.5 and 5 at%) and constant Er3+ (0.5 at%) concentrations, prepared by gycine-assisted combustion method. X-ray powder diffraction (XRPD) showed that assynthesized nanoparticles have orthorhombic structure (Pnma), assigned to the JCPDS Card No:01-072-6387. Rietveld refinement indicated a decrease in the size of the unit cell, lattice parameters, and cell volume, due to successful doping of Yb3+ and Er3+ ions into the matrix. Transmission electron microscopy (TEM) revealed that obtained nanostructure is composed of agglomerated nanoparticles, while energy dispersive spectroscopy (EDS) confirmed uniform distribution of all constituting elements in them. Up-conversion (UC) luminescence spectra measured in function of laser pumping power indicated that two-photon UC process is established in nanoparticles as a result of the trivalent erbium f-f electronic transitions: there are two green emission bands at 523 and 551 nm (2H11/2, 4S3/2 → 4I15/2) and a red emission band at 661 nm (4F9/2 → 4I15/2). The rise of Yb3+ concentration from 1 to 5 at% provokes a considerable change of the green to red ratio which indicates the possibility to optimize the color output.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia
T1  - Characterization of a new Yb3+/Er3+ doped SrGd2O4 up-conversion nanomaterial obtained via glycine-assisted combustion synthesis
SP  - 33
EP  - 33
UR  - https://hdl.handle.net/21.15107/rcub_dais_12277
ER  - 

@conference{
author = "Stamenković, Tijana and Radmilović, Nadežda and Prekajski Đorđević, Marija and Dinić, Ivana and Mančić, Lidija and Lojpur, Vesna",
year = "2021",
abstract = "In this work we present new up-conversion materials, consisted of SrGd2O4 matrix co-doped with different Yb3+ (1, 2.5 and 5 at%) and constant Er3+ (0.5 at%) concentrations, prepared by gycine-assisted combustion method. X-ray powder diffraction (XRPD) showed that assynthesized nanoparticles have orthorhombic structure (Pnma), assigned to the JCPDS Card No:01-072-6387. Rietveld refinement indicated a decrease in the size of the unit cell, lattice parameters, and cell volume, due to successful doping of Yb3+ and Er3+ ions into the matrix. Transmission electron microscopy (TEM) revealed that obtained nanostructure is composed of agglomerated nanoparticles, while energy dispersive spectroscopy (EDS) confirmed uniform distribution of all constituting elements in them. Up-conversion (UC) luminescence spectra measured in function of laser pumping power indicated that two-photon UC process is established in nanoparticles as a result of the trivalent erbium f-f electronic transitions: there are two green emission bands at 523 and 551 nm (2H11/2, 4S3/2 → 4I15/2) and a red emission band at 661 nm (4F9/2 → 4I15/2). The rise of Yb3+ concentration from 1 to 5 at% provokes a considerable change of the green to red ratio which indicates the possibility to optimize the color output.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia",
title = "Characterization of a new Yb3+/Er3+ doped SrGd2O4 up-conversion nanomaterial obtained via glycine-assisted combustion synthesis",
pages = "33-33",
url = "https://hdl.handle.net/21.15107/rcub_dais_12277"
}

Stamenković, T., Radmilović, N., Prekajski Đorđević, M., Dinić, I., Mančić, L.,& Lojpur, V.. (2021). Characterization of a new Yb3+/Er3+ doped SrGd2O4 up-conversion nanomaterial obtained via glycine-assisted combustion synthesis. in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 33-33.
https://hdl.handle.net/21.15107/rcub_dais_12277

Stamenković T, Radmilović N, Prekajski Đorđević M, Dinić I, Mančić L, Lojpur V. Characterization of a new Yb3+/Er3+ doped SrGd2O4 up-conversion nanomaterial obtained via glycine-assisted combustion synthesis. in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia. 2021;:33-33.
https://hdl.handle.net/21.15107/rcub_dais_12277 .

Stamenković, Tijana, Radmilović, Nadežda, Prekajski Đorđević, Marija, Dinić, Ivana, Mančić, Lidija, Lojpur, Vesna, "Characterization of a new Yb3+/Er3+ doped SrGd2O4 up-conversion nanomaterial obtained via glycine-assisted combustion synthesis" in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia (2021):33-33,
https://hdl.handle.net/21.15107/rcub_dais_12277 .