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Synthesis, characterization, structural refinement and optical absorption behavior of PbWO(4) powders

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dc.contributor.authorCavalcante, L. S.
dc.contributor.authorSczancoski, J. C.
dc.contributor.authorAlbarici, V. C.
dc.contributor.authorMatos, J. M. E.
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Federal do Piauí (UFPI)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:18:25Z
dc.date.available2014-05-20T14:18:25Z
dc.date.issued2008-04-25
dc.description.abstractThe present paper describes the synthesis, characterization, structural refinement and optical absorption behavior of lead tungstate (PbWO(4)) powders obtained by the complex polymerization method heat treated at different temperatures for 2h in air atmosphere. PbWO(4) powders were characterized by X-ray diffraction (XRD), Rietveld refinement, Fourier transform Raman (FT-Raman) spectroscopy and ultraviolet visible (UV-vis) absorption spectroscopy measurements. XRD, Rietveld refinement and FT-Raman revealed that PbWO(4) powders are free of secondary phases and crystallizes in a tetragonal structure. The UV-vis absorption spectroscopy measurements suggest the presence of intermediary energy levels into the band gap of structurally disordered powders. (C) 2008 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), LIEC, Dept Quim, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUniv Fed Piaui, Ctr Ciencias Nat, Dept Quim, BR-64049550 Teresina, PI, Brazil
dc.description.affiliationUniv Estadual Paulista, LIEC, Dept Quim Fis, Inst Quim, BR-14801907 Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, LIEC, Dept Quim Fis, Inst Quim, BR-14801907 Araraquara, SP, Brazil
dc.format.extent18-25
dc.identifierhttp://dx.doi.org/10.1016/j.mseb.2008.02.003
dc.identifier.citationMaterials Science and Engineering B-advanced Functional Solid-state Materials. Amsterdam: Elsevier B.V., v. 150, n. 1, p. 18-25, 2008.
dc.identifier.doi10.1016/j.mseb.2008.02.003
dc.identifier.issn0921-5107
dc.identifier.urihttp://hdl.handle.net/11449/25546
dc.identifier.wosWOS:000256346700005
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofMaterials Science and Engineering B: Advanced Functional Solid-state Materials
dc.relation.ispartofjcr3.316
dc.relation.ispartofsjr0,779
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectleaden
dc.subjectceramicsen
dc.subjectcrystallizationen
dc.subjectcrystal symmetryen
dc.subjectorder-disorder transitionen
dc.subjectoptical propertiesen
dc.titleSynthesis, characterization, structural refinement and optical absorption behavior of PbWO(4) powdersen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt

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Araraquara - IQAR - Instituto de Química