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Photoluminescence in the CaXSr1-xWO4 system at room temperature

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dc.contributor.authorPorto, S. L.
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorPizani, P. S.
dc.contributor.authorBoschi, T. M.
dc.contributor.authorSimoes, L. G. P.
dc.contributor.authorLima, S. J. G.
dc.contributor.authorFerreira, J. M.
dc.contributor.authorSoledade, L. E. B.
dc.contributor.authorEspinoza, J. W. M.
dc.contributor.authorCassia-Santos, M. R.
dc.contributor.authorMaurera, M. A. M. A.
dc.contributor.authorPaskocimas, C. A.
dc.contributor.authorSantos, I. M. G.
dc.contributor.authorSouza, A. G.
dc.contributor.institutionUniversidade Federal da Paraíba (UFPB)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionCentro Federal de Educação Tecnológica (CEFET)
dc.contributor.institutionUniversidade Federal do Rio Grande do Norte (UFRN)
dc.date.accessioned2014-05-20T15:33:42Z
dc.date.available2014-05-20T15:33:42Z
dc.date.issued2008-08-01
dc.description.abstractIn this work, a study was undertaken about the structural and photoluminescent properties, at room temperature, of powder samples from the Ca(x)sr(1-x)WO(4) (x = 0-1.0) system, synthesized by a soft chemical method and heat treated between 400 and 700 degrees C. The material was characterized using Infrared, UV-vis and Raman spectroscopy and XRD. The most intense PL emission was obtained for the sample calcined at 600 degrees C, which is neither highly disordered (400-500 degrees C), nor completely ordered (700 degrees C). Corroborating the role of disorder in the PL phenomenon, the most intense PL response was not observed for pure CaWO4 or SrWO4, but for Ca0.6Sr0.4WO4. The PL emission spectra could be separated into two Gaussian curves. The lower wavelength peak is placed around 530nm, and the higher wavelength peak at about 690nm. Similar results were reported in the literature for both CaWO4 and SrWO4. (C) 2008 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniversidade Federal da Paraíba (UFPB), Lab Combust & Mat LACOM DQ CCEN, BR-58059900 Joao Pessoa, PB, Brazil
dc.description.affiliationUNESP Araraquara, Inst Quim, CMDMC LIEC, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Fis, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Ctr Multidisciplinar Desenvolvimento Mat Ceram LI, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUniversidade Federal da Paraíba (UFPB), Dept Tecnol Mecan LSR DTM CT, Lab Solidificacao Rapida, BR-58059900 Joao Pessoa, PB, Brazil
dc.description.affiliationCtr Fed Educ Tecnol Paraiba, COAMA, Area Meio Ambiente, BR-58015430 Joao Pessoa, PB, Brazil
dc.description.affiliationUniversidade Federal do Rio Grande do Norte (UFRN), Dept Engn Mecan, BR-59072970 Natal, RN, Brazil
dc.description.affiliationUnespUNESP Araraquara, Inst Quim, CMDMC LIEC, BR-14800900 Araraquara, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent1876-1881
dc.identifierhttp://dx.doi.org/10.1016/j.jssc.2008.04.015
dc.identifier.citationJournal of Solid State Chemistry. San Diego: Academic Press Inc. Elsevier B.V., v. 181, n. 8, p. 1876-1881, 2008.
dc.identifier.doi10.1016/j.jssc.2008.04.015
dc.identifier.issn0022-4596
dc.identifier.urihttp://hdl.handle.net/11449/42259
dc.identifier.wosWOS:000259098000025
dc.language.isoeng
dc.publisherAcademic Press Inc. Elsevier B.V.
dc.relation.ispartofJournal of Solid State Chemistry
dc.relation.ispartofjcr2.179
dc.relation.ispartofsjr0,632
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjecttungstatesen
dc.subjectscheeliteen
dc.subjectphotoluminescenceen
dc.subjectdisorderen
dc.titlePhotoluminescence in the CaXSr1-xWO4 system at room temperatureen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderAcademic Press Inc. Elsevier B.V.
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentBioquímica e Tecnologia - IQpt

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Araraquara - IQAR - Instituto de Química