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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/39774
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dc.contributor.authorSczancoski, J. C.-
dc.contributor.authorCavalcante, L. S.-
dc.contributor.authorJoya, M. R.-
dc.contributor.authorEspinosa, J. W. M.-
dc.contributor.authorPizani, P. S.-
dc.contributor.authorVarela, José Arana-
dc.contributor.authorLongo, Elson-
dc.date.accessioned2014-05-20T15:30:23Z-
dc.date.accessioned2016-10-25T18:05:52Z-
dc.date.available2014-05-20T15:30:23Z-
dc.date.available2016-10-25T18:05:52Z-
dc.date.issued2009-02-01-
dc.identifierhttp://dx.doi.org/10.1016/j.jcis.2008.10.034-
dc.identifier.citationJournal of Colloid and Interface Science. San Diego: Academic Press Inc. Elsevier B.V., v. 330, n. 1, p. 227-236, 2009.-
dc.identifier.issn0021-9797-
dc.identifier.urihttp://hdl.handle.net/11449/39774-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/39774-
dc.description.abstractSrWO4 powders were synthesized by the co-precipitation method and processed in a microwave-hydrothermal (MH) at 140 degrees C for different times. The obtained powders were analyzed by X-ray diffraction (XRD), micro-Raman (MR) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, field-emission gun scanning electron microscopy (FEG-SEM), Ultraviolet-visible (UV-vis) absorption spectroscopy anti photoluminescence (PL) measurements. XRD patterns and MR spectra showed that the SrWO4 powders present a scheelite-type tetragonal structure without the presence of deleterious phases. Fr-IR spectra exhibited a high absorption band situated at 831.57 cm(-1), which was ascribed to the W-O antisymmetric stretching vibrations into the [WO4] tetrahedron groups. FEG-SEM micrographs suggested that the processing time is able to influence in the growth process and morphology of SrWO4 powders. UV-vis absorption spectra revealed different optical band gap values for these powders. A green PL emission at room temperature was verified in SrWO4 powders when excited with 488 nm wavelength. (C) 2008 Elsevier Ins. 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.sponsorshipFAPESR Special-
dc.format.extent227-236-
dc.language.isoeng-
dc.publisherAcademic Press Inc. Elsevier B.V.-
dc.sourceWeb of Science-
dc.subjectSrWO4en
dc.subjectMicrowaveen
dc.subjectGrowth processen
dc.subjectBand gapen
dc.subjectPhotoluminescenceen
dc.titleSynthesis, growth process and photoluminescence properties of SrWO4 powdersen
dc.typeoutro-
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), LIEC, Dept Quim & Fis, BR-13565905 São Carlos, SP, Brazil-
dc.description.affiliationIQ Univ Estadual Paulista, BR-14801907 Araraquara, SP, Brazil-
dc.description.affiliationUnespIQ Univ Estadual Paulista, BR-14801907 Araraquara, SP, Brazil-
dc.identifier.doi10.1016/j.jcis.2008.10.034-
dc.identifier.wosWOS:000262229700032-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal of Colloid and Interface Science-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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