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Room-temperature photoluminescence in structurally disordered SrWO4

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dc.contributor.authorAnicete-Santos, M.
dc.contributor.authorPicon, F. C.
dc.contributor.authorEscote, M. T.
dc.contributor.authorLeite, E. R.
dc.contributor.authorPizani, P. S.
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:23:11Z
dc.date.available2014-05-20T15:23:11Z
dc.date.issued2006-05-22
dc.description.abstractIntense and broad visible photoluminescent (PL) band in structurally disordered SrWO4 compounds was observed at room temperature. The polycrystalline scheelite strontium tungstate (SrWO4) samples prepared by the polymeric precursor method at different temperatures of annealing were structurally characterized by x-ray diffraction and Fourier transform Raman spectroscopy measurements. Quantum-mechanical calculations showed that the local disorder in the cluster of the network modifiers Sr has a very important role in the charge transfer. The experimental and theoretical results are in good agreement, indicating that the generation of the intense visible PL band can be related to short-range order-disorder degree in the scheelite structure. (c) 2006 American Institute of Physics.en
dc.description.affiliationUniv Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Quim, BR-14801907 Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Quim, BR-14801907 Araraquara, SP, Brazil
dc.format.extent3
dc.identifierhttp://dx.doi.org/10.1063/1.2207491
dc.identifier.citationApplied Physics Letters. Melville: Amer Inst Physics, v. 88, n. 21, 3 p., 2006.
dc.identifier.doi10.1063/1.2207491
dc.identifier.fileWOS000237846800031.pdf
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/11449/34027
dc.identifier.wosWOS:000237846800031
dc.language.isoeng
dc.publisherAmerican Institute of Physics (AIP)
dc.relation.ispartofApplied Physics Letters
dc.relation.ispartofjcr3.495
dc.relation.ispartofsjr1,382
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleRoom-temperature photoluminescence in structurally disordered SrWO4en
dc.typeArtigo
dcterms.licensehttp://publishing.aip.org/authors/web-posting-guidelines
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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