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Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes
dc.creator | Antić, Bratislav | |
dc.creator | Rogan, Jelena | |
dc.creator | Kremenović, Aleksandar | |
dc.creator | Nikolić, Aleksandar S. | |
dc.creator | Vucinić-Vasić, Milica | |
dc.creator | Božanić, Dušan K. | |
dc.creator | Goya, G. F. | |
dc.creator | Colomban, Ph | |
dc.date.accessioned | 2021-03-10T11:22:37Z | |
dc.date.available | 2021-03-10T11:22:37Z | |
dc.date.issued | 2010 | |
dc.identifier.issn | 0957-4484 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1693 | |
dc.description.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. | en |
dc.publisher | IOP Publishing Ltd, Bristol | |
dc.relation | Serbian Ministry of Science and TechnologyMinistry of Science, Serbia | |
dc.relation | SCOPES project [IZ73Z0_1 27961] | |
dc.rights | restrictedAccess | |
dc.source | Nanotechnology | |
dc.title | Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.issue | 24 | |
dc.citation.other | 21(24): - | |
dc.citation.rank | M21 | |
dc.citation.volume | 21 | |
dc.identifier.doi | 10.1088/0957-4484/21/24/245702 | |
dc.identifier.pmid | 20484791 | |
dc.identifier.scopus | 2-s2.0-77952615470 | |
dc.identifier.wos | 000278026300022 | |
dc.type.version | publishedVersion |