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Experimental and theoretical correlation of very intense visible green photoluminescence in BaZrO3 powders

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dc.contributor.authorCavalcante, L. S.
dc.contributor.authorLongo, V. M.
dc.contributor.authorZampieri, M.
dc.contributor.authorEspinosa, J. W. M.
dc.contributor.authorPizani, P. S.
dc.contributor.authorSambrano, J. R. [UNESP]
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorSimoes, M. L.
dc.contributor.authorPaskocimas, C. A.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Federal do Rio Grande do Norte (UFRN)
dc.date.accessioned2014-05-20T13:26:37Z
dc.date.available2014-05-20T13:26:37Z
dc.date.issued2008-03-15
dc.description.abstractVery intense visible green photoluminescence (PL) was observed at room temperature in structurally ordered-disordered BaZrO3 powders. Ab initio calculations, ultraviolet-visible absorption spectroscopy, electron paramagnetic resonance, and PL were performed. Theoretical and experimental results showed that local defects in the cubic structure caused by [ZrO5 center dot V-O(z)] complex clusters, where V-O(z) = V-O(x), V-O(center dot), and V-O(center dot center dot), play an important role in the formation of hole-electron pairs, giving rise to a charge gradient in the structure which is responsible for PL emission. (c) 2008 American Institute of Physics.en
dc.description.affiliationUniv Fed Sao Carlos, PPGCEM, LIEC DQ, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, LIEC IQ, BR-14801907 Araraquara, SP, Brazil
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Agr Instrumentat, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Fed Rio Grande do Norte, Dept Quim, Lab Anal Term & Mat, BR-59072970 Natal, RN, Brazil
dc.description.affiliationUniv Estadual Paulista, LIEC IQ, BR-17033360 Bauru, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, LIEC IQ, BR-14801907 Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, LIEC IQ, BR-17033360 Bauru, Brazil
dc.format.extent8
dc.identifierhttp://dx.doi.org/10.1063/1.2901176
dc.identifier.citationJournal of Applied Physics. Melville: Amer Inst Physics, v. 103, n. 6, p. 8, 2008.
dc.identifier.doi10.1063/1.2901176
dc.identifier.fileWOS000254536900043.pdf
dc.identifier.issn0021-8979
dc.identifier.urihttp://hdl.handle.net/11449/8611
dc.identifier.wosWOS:000254536900043
dc.language.isoeng
dc.publisherAmerican Institute of Physics (AIP)
dc.relation.ispartofJournal of Applied Physics
dc.relation.ispartofjcr2.176
dc.relation.ispartofsjr0,739
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleExperimental and theoretical correlation of very intense visible green photoluminescence in BaZrO3 powdersen
dc.typeArtigo
dcterms.licensehttp://www.aip.org/pubservs/web_posting_guidelines.html
dcterms.rightsHolderAmer Inst Physics
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentBioquímica e Tecnologia - IQARpt
unesp.departmentFísico-Química - IQARpt

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Araraquara - IQAR - Instituto de Química