TY  - JOUR
AU  - Kremenović, Aleksandar S.
AU  - Božanić, Dušan K.
AU  - Welsch, A. -M.
AU  - Jančar, Boštjan
AU  - Nikolić, Aleksandar S.
AU  - Bošković, Marko
AU  - Colomban, Ph.
AU  - Fabian, Martin
AU  - Antić, Bratislav
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5320
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.
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 S. and Božanić, Dušan K. and Welsch, A. -M. and Jančar, Boštjan 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.",
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. S., Božanić, D. K., Welsch, A. -M., Jančar, 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, 12(12), 8893-8899.
https://doi.org/10.1166/jnn.2012.6797

Kremenović AS, Božanić DK, Welsch A-, Jančar 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 S., Božanić, Dušan K., Welsch, A. -M., Jančar, Boštjan, 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  - Kremenović, Aleksandar S.
AU  - Draganic, I.
AU  - Colomban, Ph.
AU  - Vasiljević-Radović, Dana
AU  - Blanuša, Jovan
AU  - Tadić, Marin
AU  - Mitrić, Miodrag
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3715
AB  - We report the results of ion irradiation influence on rare earth sesquioxides structure, which are materials of practical importance as a radiation resistant ceramics in nuclear applications. Y2O3, Gd2O3 and Er2O3 sesquioxides in the pellet form were irradiated by oxygen ions (O2+) beam with the energy of 30 keV and implantation fluence of 5 x 10(20) m (2). Samples are characterized by Grazing Incidence X-ray Diffraction (GIXRD), Raman spectroscopy and atomic force microscopy (AFM). By GIXRD it was found partial transformation from cubic (C) to monoclinic (B) phase only in Gd2O3, induced by O2+ irradiation. This was confirmed by Raman spectroscopy. Although full phase transition from C to B phase in Y2O3 was not observed, the splitting and broadening of the main intensity Raman band for C phase could be explained by the stress and the disorder induced by the quenching. Analysis done by AFM showed changes in surface topology, i.e. values of average roughness (Ra) and root mean squared roughness (RMS) were significantly changed after irradiation for all samples. RMSs in Y2O3 before and after irradiation were 35 nm and 26 nm, respectively. (C) 2009 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Effects of O2+ ions beam irradiation on crystal structure of rare earth sesquioxides
VL  - 255
IS  - 17
SP  - 7601
EP  - 7604
DO  - 10.1016/j.apsusc.2009.04.035
ER  - 

@article{
author = "Antić, Bratislav and Kremenović, Aleksandar S. and Draganic, I. and Colomban, Ph. and Vasiljević-Radović, Dana and Blanuša, Jovan and Tadić, Marin and Mitrić, Miodrag",
year = "2009",
abstract = "We report the results of ion irradiation influence on rare earth sesquioxides structure, which are materials of practical importance as a radiation resistant ceramics in nuclear applications. Y2O3, Gd2O3 and Er2O3 sesquioxides in the pellet form were irradiated by oxygen ions (O2+) beam with the energy of 30 keV and implantation fluence of 5 x 10(20) m (2). Samples are characterized by Grazing Incidence X-ray Diffraction (GIXRD), Raman spectroscopy and atomic force microscopy (AFM). By GIXRD it was found partial transformation from cubic (C) to monoclinic (B) phase only in Gd2O3, induced by O2+ irradiation. This was confirmed by Raman spectroscopy. Although full phase transition from C to B phase in Y2O3 was not observed, the splitting and broadening of the main intensity Raman band for C phase could be explained by the stress and the disorder induced by the quenching. Analysis done by AFM showed changes in surface topology, i.e. values of average roughness (Ra) and root mean squared roughness (RMS) were significantly changed after irradiation for all samples. RMSs in Y2O3 before and after irradiation were 35 nm and 26 nm, respectively. (C) 2009 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Effects of O2+ ions beam irradiation on crystal structure of rare earth sesquioxides",
volume = "255",
number = "17",
pages = "7601-7604",
doi = "10.1016/j.apsusc.2009.04.035"
}

Antić, B., Kremenović, A. S., Draganic, I., Colomban, Ph., Vasiljević-Radović, D., Blanuša, J., Tadić, M.,& Mitrić, M.. (2009). Effects of O2+ ions beam irradiation on crystal structure of rare earth sesquioxides. in Applied Surface Science, 255(17), 7601-7604.
https://doi.org/10.1016/j.apsusc.2009.04.035

Antić B, Kremenović AS, Draganic I, Colomban P, Vasiljević-Radović D, Blanuša J, Tadić M, Mitrić M. Effects of O2+ ions beam irradiation on crystal structure of rare earth sesquioxides. in Applied Surface Science. 2009;255(17):7601-7604.
doi:10.1016/j.apsusc.2009.04.035 .

Antić, Bratislav, Kremenović, Aleksandar S., Draganic, I., Colomban, Ph., Vasiljević-Radović, Dana, Blanuša, Jovan, Tadić, Marin, Mitrić, Miodrag, "Effects of O2+ ions beam irradiation on crystal structure of rare earth sesquioxides" in Applied Surface Science, 255, no. 17 (2009):7601-7604,
https://doi.org/10.1016/j.apsusc.2009.04.035 . .