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

Página do item simplificado
dc.contributor.authorMarques, Ana Paula A.
dc.contributor.authorMotta, Fabiana V.
dc.contributor.authorCruz, Mariana A.
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorRosa, Ieda L. V.
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Federal do Rio Grande do Norte (UFRN)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:33:09Z
dc.date.available2014-05-20T15:33:09Z
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.affiliationUniversidade Federal de São Carlos (UFSCar), LIEC, Dept Quim, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUniversidade Federal do Rio Grande do Norte (UFRN), Dept Mat Engn, BR-59072970 Natal, RN, Brazil
dc.description.affiliationUniv Estadual Paulista, CMDMC, LIEC, Inst Quim, BR-14801907 Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, CMDMC, LIEC, Inst Quim, BR-14801907 Araraquara, SP, Brazil
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.sponsorshipPrograma de Apoio aos Núcleos de Excelência (PRONEX)
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://hdl.handle.net/11449/41866
dc.identifier.wosWOS:000298029900009
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofSolid State Ionics
dc.relation.ispartofjcr2.751
dc.relation.ispartofsjr0,856
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectMolybdateen
dc.subjectComplex polymerization methoden
dc.subjectLuminescenceen
dc.subjectTb3+ dopeden
dc.titleBaMoO4:Tb3+ phosphor properties: Synthesis, characterization and photophysical studiesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

Arquivos

Licença do Pacote
Agora exibindo 1 - 2 de 2
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos - Físico Química - IQ
Artigos - Bioquímica e Tecnologia - IQ