TY  - JOUR
AU  - Krsmanović, Radenka
AU  - Antić, Željka
AU  - Nikolić, Marko G.
AU  - Mitrić, Miodrag
AU  - Dramićanin, Miroslav
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4211
AB  - Herein we presented polymer complex solution method for production of well crystalline europium doped Y2O3 nanopowders. Polyethylene glycol (PEG) of five different molecular weights is used both as a fuel and as a nucleation agent for the crystallization. Powders were cold-pressed and sintered to obtain ceramics. SEM images taken from ceramic pellets indicate formation of a dense structure, with a pronounced grain growth and low pore concentration. Luminescence emission spectra of powders and ceramics are similar, and in good agreement with theoretical data. Lifetimes of Eu3+5D0 level in nanocrystalline powders are higher compared to one observed in bulk, confirming in this case theory of lifetime lengthening in nanophosphors due to the change of effective refraction index. As expected, lifetime values in ceramic samples decrease toward the value in bulk Y2O3. The optical filling factor is calculated from observed decay times, providing a measure of discrepancy between powder and bulk state regarding their luminescent properties. (C) 2010 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Preparation of Y2O3:Eu3+ nanopowders via polymer complex solution method and luminescence properties of the sintered ceramics
VL  - 37
IS  - 2
SP  - 525
EP  - 531
DO  - 10.1016/j.ceramint.2010.09.040
ER  - 

@article{
author = "Krsmanović, Radenka and Antić, Željka and Nikolić, Marko G. and Mitrić, Miodrag and Dramićanin, Miroslav",
year = "2011",
abstract = "Herein we presented polymer complex solution method for production of well crystalline europium doped Y2O3 nanopowders. Polyethylene glycol (PEG) of five different molecular weights is used both as a fuel and as a nucleation agent for the crystallization. Powders were cold-pressed and sintered to obtain ceramics. SEM images taken from ceramic pellets indicate formation of a dense structure, with a pronounced grain growth and low pore concentration. Luminescence emission spectra of powders and ceramics are similar, and in good agreement with theoretical data. Lifetimes of Eu3+5D0 level in nanocrystalline powders are higher compared to one observed in bulk, confirming in this case theory of lifetime lengthening in nanophosphors due to the change of effective refraction index. As expected, lifetime values in ceramic samples decrease toward the value in bulk Y2O3. The optical filling factor is calculated from observed decay times, providing a measure of discrepancy between powder and bulk state regarding their luminescent properties. (C) 2010 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Preparation of Y2O3:Eu3+ nanopowders via polymer complex solution method and luminescence properties of the sintered ceramics",
volume = "37",
number = "2",
pages = "525-531",
doi = "10.1016/j.ceramint.2010.09.040"
}

Krsmanović, R., Antić, Ž., Nikolić, M. G., Mitrić, M.,& Dramićanin, M.. (2011). Preparation of Y2O3:Eu3+ nanopowders via polymer complex solution method and luminescence properties of the sintered ceramics. in Ceramics International, 37(2), 525-531.
https://doi.org/10.1016/j.ceramint.2010.09.040

Krsmanović R, Antić Ž, Nikolić MG, Mitrić M, Dramićanin M. Preparation of Y2O3:Eu3+ nanopowders via polymer complex solution method and luminescence properties of the sintered ceramics. in Ceramics International. 2011;37(2):525-531.
doi:10.1016/j.ceramint.2010.09.040 .

Krsmanović, Radenka, Antić, Željka, Nikolić, Marko G., Mitrić, Miodrag, Dramićanin, Miroslav, "Preparation of Y2O3:Eu3+ nanopowders via polymer complex solution method and luminescence properties of the sintered ceramics" in Ceramics International, 37, no. 2 (2011):525-531,
https://doi.org/10.1016/j.ceramint.2010.09.040 . .

TY  - JOUR
AU  - Krsmanović, Radenka
AU  - Antić, Željka
AU  - Bartova, Barbora
AU  - Dramićanin, Miroslav
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4088
AB  - We explored a synthesis route based on the polymer complex solution method for the production of the rare-earth doped Lu2O3 crystalline nanopowders. In this type of synthesis polyethylene glycol is used both as fuel for the combustion reaction, and as nucleation agent for the crystallization process. Synthesized materials were characterized with X-ray diffraction technique, scanning and transmission electron microscopy, EDX technique and photoluminescence spectroscopy with steady state and time domain measurements. X-ray diffraction and electron diffraction analysis showed that presented synthesis procedure yields pure-phase, well crystallized Lu2O3 nanopowders with the particles dimensions in the 30-50 nm range, as observed from TEM images. Luminescence properties of Sm3+ and Tb3+ doped Lu2O3 exhibited characteristic red and pseudo-white emissions from these rare-earth ions, with an average emission lifetime of 0.8 and 0.6 ms, respectively. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Characterization of rare-earth doped Lu2O3 nanopowders prepared with polymer complex solution synthesis
VL  - 505
IS  - 1
SP  - 224
EP  - 228
DO  - 10.1016/j.jallcom.2010.06.033
ER  - 

@article{
author = "Krsmanović, Radenka and Antić, Željka and Bartova, Barbora and Dramićanin, Miroslav",
year = "2010",
abstract = "We explored a synthesis route based on the polymer complex solution method for the production of the rare-earth doped Lu2O3 crystalline nanopowders. In this type of synthesis polyethylene glycol is used both as fuel for the combustion reaction, and as nucleation agent for the crystallization process. Synthesized materials were characterized with X-ray diffraction technique, scanning and transmission electron microscopy, EDX technique and photoluminescence spectroscopy with steady state and time domain measurements. X-ray diffraction and electron diffraction analysis showed that presented synthesis procedure yields pure-phase, well crystallized Lu2O3 nanopowders with the particles dimensions in the 30-50 nm range, as observed from TEM images. Luminescence properties of Sm3+ and Tb3+ doped Lu2O3 exhibited characteristic red and pseudo-white emissions from these rare-earth ions, with an average emission lifetime of 0.8 and 0.6 ms, respectively. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Characterization of rare-earth doped Lu2O3 nanopowders prepared with polymer complex solution synthesis",
volume = "505",
number = "1",
pages = "224-228",
doi = "10.1016/j.jallcom.2010.06.033"
}

Krsmanović, R., Antić, Ž., Bartova, B.,& Dramićanin, M.. (2010). Characterization of rare-earth doped Lu2O3 nanopowders prepared with polymer complex solution synthesis. in Journal of Alloys and Compounds, 505(1), 224-228.
https://doi.org/10.1016/j.jallcom.2010.06.033

Krsmanović R, Antić Ž, Bartova B, Dramićanin M. Characterization of rare-earth doped Lu2O3 nanopowders prepared with polymer complex solution synthesis. in Journal of Alloys and Compounds. 2010;505(1):224-228.
doi:10.1016/j.jallcom.2010.06.033 .

Krsmanović, Radenka, Antić, Željka, Bartova, Barbora, Dramićanin, Miroslav, "Characterization of rare-earth doped Lu2O3 nanopowders prepared with polymer complex solution synthesis" in Journal of Alloys and Compounds, 505, no. 1 (2010):224-228,
https://doi.org/10.1016/j.jallcom.2010.06.033 . .