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dc.creatorAntić, Bratislav
dc.creatorRogan, Jelena
dc.creatorKremenović, Aleksandar
dc.creatorNikolić, Aleksandar S.
dc.creatorVucinić-Vasić, Milica
dc.creatorBožanić, Dušan K.
dc.creatorGoya, G. F.
dc.creatorColomban, Ph
dc.date.accessioned2021-03-10T11:22:37Z
dc.date.available2021-03-10T11:22:37Z
dc.date.issued2010
dc.identifier.issn0957-4484
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/1693
dc.description.abstractSpherical 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.publisherIOP Publishing Ltd, Bristol
dc.relationSerbian Ministry of Science and TechnologyMinistry of Science, Serbia
dc.relationSCOPES project [IZ73Z0_1 27961]
dc.rightsrestrictedAccess
dc.sourceNanotechnology
dc.titleOptimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexesen
dc.typearticle
dc.rights.licenseARR
dc.citation.issue24
dc.citation.other21(24): -
dc.citation.rankM21
dc.citation.volume21
dc.identifier.doi10.1088/0957-4484/21/24/245702
dc.identifier.pmid20484791
dc.identifier.scopus2-s2.0-77952615470
dc.identifier.wos000278026300022
dc.type.versionpublishedVersion


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Приказ основних података о документу