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Influence of La substitution on local structural and photoluminescence properties of SrTiO3:Pr phosphor

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dc.contributor.authorDeltreggia, Lucas Angelini [UNESP]
dc.contributor.authorBernardi, Maria Inês Basso
dc.contributor.authorMesquita, Alexandre [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2018-12-11T16:54:38Z
dc.date.available2018-12-11T16:54:38Z
dc.date.issued2018-12-01
dc.description.abstractPr3+-doped perovskite-based SrTiO3 phosphors have been developed as a potential red phosphor. In this paper, we report the substitution of La3+ ions for Sr2+ ions in order to promote Sr vacancies to further enhance photoluminescence. Given that the La content increases, an enhancement in the intensity of all emissions is observed, mainly for 1D2–3H4 and 3P0–3H6 transitions. This enhancement of photoluminescence emissions is associated with disorder in the lattice caused by La incorporation. Raman measurements and X-ray absorption near edge structure (XANES) spectra at the Ti K-edge identify this disorder as a function of the La content.en
dc.description.affiliationInstitute of Geosciences and Exact Sciences São Paulo State University (Unesp)
dc.description.affiliationSão Carlos Institute of Physics University of São Paulo USP
dc.description.affiliationUnespInstitute of Geosciences and Exact Sciences São Paulo State University (Unesp)
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.sponsorshipIdFAPESP: 2013/12993-4
dc.description.sponsorshipIdCNPq: 302743/2014-6
dc.format.extent15-18
dc.identifierhttp://dx.doi.org/10.1016/j.scriptamat.2018.07.018
dc.identifier.citationScripta Materialia, v. 157, p. 15-18.
dc.identifier.doi10.1016/j.scriptamat.2018.07.018
dc.identifier.file2-s2.0-85050499347.pdf
dc.identifier.issn1359-6462
dc.identifier.scopus2-s2.0-85050499347
dc.identifier.urihttp://hdl.handle.net/11449/171262
dc.language.isoeng
dc.relation.ispartofScripta Materialia
dc.relation.ispartofsjr1,923
dc.rights.accessRightsAcesso abertopt
dc.sourceScopus
dc.titleInfluence of La substitution on local structural and photoluminescence properties of SrTiO3:Pr phosphoren
dc.typeArtigopt
dspace.entity.typePublication
unesp.author.lattes2835864951583089[3]
unesp.author.orcid0000-0001-8524-0959[3]
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Geociências e Ciências Exatas, Rio Claropt

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Rio Claro - IGCE - Instituto de Geociências e Ciências Exatas