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dc.contributor.authorRavaro, Leandro Piaggi [UNESP]
dc.contributor.authorTabata, Américo Sheitiro [UNESP]
dc.contributor.authorOliveira, José Brás Barreto de [UNESP]
dc.contributor.authorScalvi, Luis Vicente de Andrade [UNESP]
dc.date.accessioned2014-05-20T13:26:16Z
dc.date.available2014-05-20T13:26:16Z
dc.date.issued2010-11-01
dc.identifierhttp://dx.doi.org/10.1016/j.optmat.2010.08.001
dc.identifier.citationOptical Materials. Amsterdam: Elsevier B.V., v. 33, n. 1, p. 66-70, 2010.
dc.identifier.issn0925-3467
dc.identifier.urihttp://hdl.handle.net/11449/8439
dc.description.abstractRaman and infrared photoluminescence measurements are carried out for Er3+-doped SnO2 pellets (hard-pressed powders) obtained by the sol-gel technique from colloidal suspensions with distinct pH. Raman data indicate that bulk vibration modes are dominating for neutral pH. When the pH is modified, there is an intensity increase of acoustic surface modes. The evaluation of bulk and crystallite surface vibration modes indicates that the contribution of the bulk decreases for pH above the neutral and decreases even further for acid pH, becoming the surface vibration modes as dominating in this case. Infrared photoluminescence data indicate that the intensity of the emission generated from the I-4(13/2) -> I-4(15/2) transition is strongly dependent on the pH of colloidal suspension, which may broaden the emission peaks due to overlapping of Stark levels. (C) 2010 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipFundação para o Desenvolvimento da UNESP (FUNDUNESP)
dc.format.extent66-70
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofOptical Materials
dc.sourceWeb of Science
dc.subjectTin dioxideen
dc.subjectSol-gelen
dc.subjectErbiumen
dc.subjectpHen
dc.subjectLuminescenceen
dc.titleRaman and photoluminescence of Er3+-doped SnO2 obtained via the sol-gel technique from solutions with distinct pHen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationUNESP State Univ São Paulo, Dept Phys FC, Bauru, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, POSMAT, São Paulo, Brazil
dc.description.affiliationUnespUNESP State Univ São Paulo, Dept Phys FC, Bauru, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, POSMAT, São Paulo, Brazil
dc.identifier.doi10.1016/j.optmat.2010.08.001
dc.identifier.wosWOS:000284255100013
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências, Baurupt
dc.identifier.lattes9354064620643611
dc.identifier.lattes6977466698742311
dc.identifier.lattes7730719476451232
dc.identifier.orcid0000-0001-5762-6424
unesp.author.lattes9354064620643611[2]
unesp.author.lattes6977466698742311
unesp.author.lattes7730719476451232[4]
unesp.author.orcid0000-0001-5762-6424[4]
unesp.author.orcid0000-0002-4932-5776[1]
unesp.author.orcid0000-0002-9389-0238[2]
dc.relation.ispartofjcr2.320
dc.relation.ispartofsjr0,592
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