Structural XANES characterization of Ca0.99Sm0.01TiO3 perovskite and correlation with photoluminescence emission

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dc.contributor.authorde Figueiredo, A. T.
dc.contributor.authorLongo, V. M. [UNESP]
dc.contributor.authorda Silva, R. O. [UNESP]
dc.contributor.authorMastelaro, V. R.
dc.contributor.authorMesquita, A.
dc.contributor.authorFranco, R. W. A.
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Goiás (UFG)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniv Estadual N Fluminen
dc.date.accessioned2014-05-20T14:18:26Z
dc.date.available2014-05-20T14:18:26Z
dc.date.issued2012-08-20
dc.description.abstractIn this work, CaTiO3:Sm (CT:Sm) were prepared by a soft chemical processing at different annealing temperatures starting with a disordered structure and reaching an ordered one, with the propose to understand the relationship between structural order-disorder and photoluminescence emission. The samples were characterized by titanium K-edge, Titanium L-II and L-III-edge XANES, electron paramagnetic resonance (EPR) and photoluminescence (PL) measurements. XANES results clearly point the presence of local distortion in [TiO6] octahedral clusters until the crystallization was completed. The interactions of the network clusters that form the CT:Sm structures provides favorable structural and electronic conditions for the appearance of PL phenomena. (C) 2012 Published by Elsevier B.V.en
dc.description.affiliationUniv Estadual Paulista, Phys Chem Dept, LIEC, BR-14801907 Araraquara, SP, Brazil
dc.description.affiliationGoias Fed Univ, Dept Chem, BR-75704020 Catalao, GO, Brazil
dc.description.affiliationUniv São Paulo, São Carlos Phys Inst, BR-13560970 São Carlos, SP, Brazil
dc.description.affiliationUniv Estadual N Fluminen, Technol Sci Ctr, BR-28013602 Campos dos Goytacazes, RJ, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Phys Chem Dept, LIEC, BR-14801907 Araraquara, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canada (NSERC)
dc.description.sponsorshipNRC
dc.description.sponsorshipCanadian Institutes of Health Research (CIHR)
dc.description.sponsorshipUniversity of Saskatchewan
dc.format.extent43-48
dc.identifierhttp://dx.doi.org/10.1016/j.cplett.2012.06.027
dc.identifier.citationChemical Physics Letters. Amsterdam: Elsevier B.V., v. 544, p. 43-48, 2012.
dc.identifier.doi10.1016/j.cplett.2012.06.027
dc.identifier.issn0009-2614
dc.identifier.urihttp://hdl.handle.net/11449/25554
dc.identifier.wosWOS:000307879100009
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofChemical Physics Letters
dc.relation.ispartofjcr1.686
dc.relation.ispartofsjr0,656
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleStructural XANES characterization of Ca0.99Sm0.01TiO3 perovskite and correlation with photoluminescence emissionen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes2835864951583089[5]
unesp.author.orcid0000-0001-8524-0959[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt

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Araraquara - IQAR - Instituto de Química