TY  - JOUR
AU  - Kremenović, Aleksandar
AU  - Bozanic, D. K.
AU  - Welsch, A. -M.
AU  - Jancar, B.
AU  - Nikolić, Aleksandar S.
AU  - Bošković, Marko
AU  - Colomban, Ph.
AU  - Fabian, Martin
AU  - Antić, Bratislav
PY  - 2012
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1603
AB  - The 5-10 nnn Ce1-XEuXO2-delta (0  lt = x  lt = 0.30) nanoparticles with fluorite structure were synthesized by thermal decomposition of Eu- and Ce-2,4-pentanedione complexes mixtures. X-ray line broadening analysis of mixed samples Ce1-XEuXO2-delta (0.05  lt = x  lt = 0.30) showed that the crystallite size was lower and root mean square strain higher than in pure ceria. However, within mixed samples Ce1-XEuXO2-delta (0.05  lt = x  lt = 0.30) crystallite size and root mean square strain were independent of Eu3+ concentration. Raman spectroscopy results indicated that europium ions yield disorder by breaking the phonon propagation and therefore making the non-centre Brillouin zone modes Raman active. The absorption bands in the spectra of mixed oxides were blue-shifted in comparison to pure CeO2-delta nanopowder. The samples show red emission typical for Eu ions. The biggest photoluminescent intensity was observed for the highest Eu3+ concentration (x = 0.30) and further enhanced with the increase in crystallinity.
PB  - Amer Scientific Publishers, Valencia
T2  - Journal of Nanoscience and Nanotechnology
T1  - Effects of Eu3+ Concentration on Structural, Optical and Vibrational Properties of Multifunctional Ce1-X,EuXO2-delta Nanoparticles Synthesized by Thermolysis of 2,4-Pentanedione Complexes
VL  - 12
IS  - 12
SP  - 8893
EP  - 8899
DO  - 10.1166/jnn.2012.6797
ER  - 

@article{
author = "Kremenović, Aleksandar and Bozanic, D. K. and Welsch, A. -M. and Jancar, B. and Nikolić, Aleksandar S. and Bošković, Marko and Colomban, Ph. and Fabian, Martin and Antić, Bratislav",
year = "2012",
abstract = "The 5-10 nnn Ce1-XEuXO2-delta (0  lt = x  lt = 0.30) nanoparticles with fluorite structure were synthesized by thermal decomposition of Eu- and Ce-2,4-pentanedione complexes mixtures. X-ray line broadening analysis of mixed samples Ce1-XEuXO2-delta (0.05  lt = x  lt = 0.30) showed that the crystallite size was lower and root mean square strain higher than in pure ceria. However, within mixed samples Ce1-XEuXO2-delta (0.05  lt = x  lt = 0.30) crystallite size and root mean square strain were independent of Eu3+ concentration. Raman spectroscopy results indicated that europium ions yield disorder by breaking the phonon propagation and therefore making the non-centre Brillouin zone modes Raman active. The absorption bands in the spectra of mixed oxides were blue-shifted in comparison to pure CeO2-delta nanopowder. The samples show red emission typical for Eu ions. The biggest photoluminescent intensity was observed for the highest Eu3+ concentration (x = 0.30) and further enhanced with the increase in crystallinity.",
publisher = "Amer Scientific Publishers, Valencia",
journal = "Journal of Nanoscience and Nanotechnology",
title = "Effects of Eu3+ Concentration on Structural, Optical and Vibrational Properties of Multifunctional Ce1-X,EuXO2-delta Nanoparticles Synthesized by Thermolysis of 2,4-Pentanedione Complexes",
volume = "12",
number = "12",
pages = "8893-8899",
doi = "10.1166/jnn.2012.6797"
}

Kremenović, A., Bozanic, D. K., Welsch, A. -M., Jancar, B., Nikolić, A. S., Bošković, M., Colomban, Ph., Fabian, M.,& Antić, B.. (2012). Effects of Eu3+ Concentration on Structural, Optical and Vibrational Properties of Multifunctional Ce1-X,EuXO2-delta Nanoparticles Synthesized by Thermolysis of 2,4-Pentanedione Complexes. in Journal of Nanoscience and Nanotechnology
Amer Scientific Publishers, Valencia., 12(12), 8893-8899.
https://doi.org/10.1166/jnn.2012.6797

Kremenović A, Bozanic DK, Welsch A-, Jancar B, Nikolić AS, Bošković M, Colomban P, Fabian M, Antić B. Effects of Eu3+ Concentration on Structural, Optical and Vibrational Properties of Multifunctional Ce1-X,EuXO2-delta Nanoparticles Synthesized by Thermolysis of 2,4-Pentanedione Complexes. in Journal of Nanoscience and Nanotechnology. 2012;12(12):8893-8899.
doi:10.1166/jnn.2012.6797 .

Kremenović, Aleksandar, Bozanic, D. K., Welsch, A. -M., Jancar, B., Nikolić, Aleksandar S., Bošković, Marko, Colomban, Ph., Fabian, Martin, Antić, Bratislav, "Effects of Eu3+ Concentration on Structural, Optical and Vibrational Properties of Multifunctional Ce1-X,EuXO2-delta Nanoparticles Synthesized by Thermolysis of 2,4-Pentanedione Complexes" in Journal of Nanoscience and Nanotechnology, 12, no. 12 (2012):8893-8899,
https://doi.org/10.1166/jnn.2012.6797 . .

TY  - JOUR
AU  - Antić, Bratislav
AU  - Rogan, J.
AU  - Kremenović, Aleksandar
AU  - Nikolić, Aleksandar S.
AU  - Vučinić-Vasić, M.
AU  - Bozanic, D. K.
AU  - Goya, G. F.
AU  - Colomban, Ph
PY  - 2010
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1082
AB  - Spherical shaped nanoparticles of series Y2-xEuxO3 (x = 0.06, 0.10, 0.20, and 2) and Gd2-xEuxO3 (x = 0.06, 0.10) were prepared by thermolysis of 2,4-pentanedione complexes of Y, Gd, and Eu. The bixbyite phase of Gd2-xEuxO3 samples was formed at 500 degrees C, whereas the thermal decomposition of Y and Eu complexes' mixtures occurred at higher temperatures. Linearity in the concentration dependence on lattice parameter confirmed the formation of solid solutions. The distribution of Eu3+ in Gd2-xEuxO3 was changed with thermal annealing: in the as-prepared sample (x = 0.10) the distribution was preferential at C-3i sites while in the annealed samples, Eu3+ were distributed at both C-2 and C-3i sites. Rietveld refinement of site occupancies as well as emission spectra showed a random distribution of cations in Y2-xEuxO3. The photoluminescence (PL) measurements of the sample showed red emission with the main peak at 614 nm (D-5(0)-F-7(2)). The PL intensity increased with increasing concentration of Eu3+ in both series. Infrared excitation was required to obtain good Raman spectra. The linear dependence of the main Raman peak wavenumber offers a non-destructive method for monitoring the substitution level and its homogeneity at the micron scale.
PB  - Iop Publishing Ltd, Bristol
T2  - Nanotechnology
T1  - Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes
VL  - 21
IS  - 24
DO  - 10.1088/0957-4484/21/24/245702
ER  - 

@article{
author = "Antić, Bratislav and Rogan, J. and Kremenović, Aleksandar and Nikolić, Aleksandar S. and Vučinić-Vasić, M. and Bozanic, D. K. and Goya, G. F. and Colomban, Ph",
year = "2010",
abstract = "Spherical shaped nanoparticles of series Y2-xEuxO3 (x = 0.06, 0.10, 0.20, and 2) and Gd2-xEuxO3 (x = 0.06, 0.10) were prepared by thermolysis of 2,4-pentanedione complexes of Y, Gd, and Eu. The bixbyite phase of Gd2-xEuxO3 samples was formed at 500 degrees C, whereas the thermal decomposition of Y and Eu complexes' mixtures occurred at higher temperatures. Linearity in the concentration dependence on lattice parameter confirmed the formation of solid solutions. The distribution of Eu3+ in Gd2-xEuxO3 was changed with thermal annealing: in the as-prepared sample (x = 0.10) the distribution was preferential at C-3i sites while in the annealed samples, Eu3+ were distributed at both C-2 and C-3i sites. Rietveld refinement of site occupancies as well as emission spectra showed a random distribution of cations in Y2-xEuxO3. The photoluminescence (PL) measurements of the sample showed red emission with the main peak at 614 nm (D-5(0)-F-7(2)). The PL intensity increased with increasing concentration of Eu3+ in both series. Infrared excitation was required to obtain good Raman spectra. The linear dependence of the main Raman peak wavenumber offers a non-destructive method for monitoring the substitution level and its homogeneity at the micron scale.",
publisher = "Iop Publishing Ltd, Bristol",
journal = "Nanotechnology",
title = "Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes",
volume = "21",
number = "24",
doi = "10.1088/0957-4484/21/24/245702"
}

Antić, B., Rogan, J., Kremenović, A., Nikolić, A. S., Vučinić-Vasić, M., Bozanic, D. K., Goya, G. F.,& Colomban, P.. (2010). Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes. in Nanotechnology
Iop Publishing Ltd, Bristol., 21(24).
https://doi.org/10.1088/0957-4484/21/24/245702

Antić B, Rogan J, Kremenović A, Nikolić AS, Vučinić-Vasić M, Bozanic DK, Goya GF, Colomban P. Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes. in Nanotechnology. 2010;21(24).
doi:10.1088/0957-4484/21/24/245702 .

Antić, Bratislav, Rogan, J., Kremenović, Aleksandar, Nikolić, Aleksandar S., Vučinić-Vasić, M., Bozanic, D. K., Goya, G. F., Colomban, Ph, "Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes" in Nanotechnology, 21, no. 24 (2010),
https://doi.org/10.1088/0957-4484/21/24/245702 . .