BaMoO4:Tb3+ phosphor properties: Synthesis, characterization and photophysical studies

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dc.contributor.authorMarques, Ana Paula A. [UNIFESP]
dc.contributor.authorMotta, Fabiana V.
dc.contributor.authorCruz, Mariana A.
dc.contributor.authorVarela, Jose A.
dc.contributor.authorLongo, Elson
dc.contributor.authorRosa, Ieda L. V.
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniv Fed Rio Grande do Norte
dc.contributor.institutionUniv Estadual Paulista
dc.date.accessioned2016-01-24T14:17:26Z
dc.date.available2016-01-24T14:17:26Z
dc.date.issued2011-11-02
dc.description.abstractBaMoO4:Tb3+ powders were synthesized by the complex polymerization (CP) method and characterized by powder X-ray diffraction patterns (XRD), Fourier transform infra-Red (FTIR) and Raman spectroscopy as well as photoluminescence (PL) measurements. the results confirmed the presence of a crystalline scheelite-type phase in BaMoO4:TP3+ crystalline powers. Excitation spectra, lambda(em).= 543 nm revealed the predominance of a broad band of charge transfer that was ascribed to the absorption of [MoO4](2-) ionic tetragonal clusters. Emission spectra of BaMoO4:Tb3+ samples (lambda(ex.)= 294 nm) have a group of sharp emission bands (456-487 nm; 543-546 nm; 581-589 nm and 617-620 nm) assigned to the D-5(4) -> F-7(6), D-5(4) -> F-7(5), D-5(4) -> F-7(4) and D-5(4) -> F-7(3) transitions of Tb3+ ions, respectively. the samples show the exponential decay curves of D-5(4) -> F-7(5) transition, lambda(exc). = 294 nm and lambda(em) = 543 nm, where the greater decay time was evaluated as 1.07 ms for the BaMoO4:Tb3+ annealed at 900 degrees C. (C) 2011 Elsevier B.V. All rights reserved.en
dc.description.affiliationUNIFESP, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationUniv Fed Sao Carlos, LIEC, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Fed Rio Grande do Norte, Dept Mat Engn, BR-59072970 Natal, RN, Brazil
dc.description.affiliationUniv Estadual Paulista, CMDMC, LIEC, Inst Quim, BR-14801907 Araraquara, SP, Brazil
dc.description.affiliationUnifespUNIFESP, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCEPID
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipPRONEX
dc.format.extent54-59
dc.identifierhttp://dx.doi.org/10.1016/j.ssi.2011.08.013
dc.identifier.citationSolid State Ionics. Amsterdam: Elsevier B.V., v. 202, n. 1, p. 54-59, 2011.
dc.identifier.doi10.1016/j.ssi.2011.08.013
dc.identifier.issn0167-2738
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/34222
dc.identifier.wosWOS:000298029900009
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofSolid State Ionics
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.subjectMolybdateen
dc.subjectComplex polymerization methoden
dc.subjectLuminescenceen
dc.subjectTb3+ dopeden
dc.titleBaMoO4:Tb3+ phosphor properties: Synthesis, characterization and photophysical studiesen
dc.typeinfo:eu-repo/semantics/article
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