You are in the accessibility menu

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/25014
Full metadata record
DC FieldValueLanguage
dc.contributor.authorCavalcante, L. S.-
dc.contributor.authorSczancoski, J. C.-
dc.contributor.authorEspinosa, J. W. M.-
dc.contributor.authorMastelaro, V. R.-
dc.contributor.authorMichalowicz, A.-
dc.contributor.authorPizani, P. S.-
dc.contributor.authorVicente, Fábio Simões de-
dc.contributor.authorLi, M. S.-
dc.contributor.authorVarela, José Arana-
dc.contributor.authorLongo, Elson-
dc.date.accessioned2013-09-30T18:50:57Z-
dc.date.accessioned2014-05-20T14:16:40Z-
dc.date.accessioned2016-10-25T17:39:37Z-
dc.date.available2013-09-30T18:50:57Z-
dc.date.available2014-05-20T14:16:40Z-
dc.date.available2016-10-25T17:39:37Z-
dc.date.issued2009-03-05-
dc.identifierhttp://dx.doi.org/10.1016/j.jallcom.2008.03.080-
dc.identifier.citationJournal of Alloys and Compounds. Lausanne: Elsevier B.V. Sa, v. 471, n. 1-2, p. 253-258, 2009.-
dc.identifier.issn0925-8388-
dc.identifier.urihttp://hdl.handle.net/11449/25014-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/25014-
dc.description.abstractIntense blue and green photoluminescence (PL) emissions were observed at room temperature in barium zirconate (BaZrO(3)) powders prepared by chemical method. The powders were analyzed by X-ray diffraction (XRD), X-ray absorption near edge spectroscopy (XANES), extended X-ray absorption spectroscopy (EXAFS) and ultraviolet-visible (UV-vis) absorption spectroscopy. The XRD patterns indicated the presence of a secondary phase of BaCO(3) in BaZrO(3) powders heat treated at 773K. K-edge XANES data revealed that Zr atoms presents in at least two Zr environments. EXAFS investigations showed strong bond length dispersion in the first coordination shell around Zr atoms. EXAFS analysis indicated that Zr atoms are coordinated by 6 oxygen in BaZrO(3) powders heat treated at 973 K. UV-vis measurements suggested the presence of intermediary energy levels into the band gap of BaZrO(3) powders heat treated at 773K. The intense PL emission in BaZrO(3) powders can be attributed to the two Zr environments or ZrO(5)-ZrO(6) clusters. (C) 2008 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.description.sponsorshipLaboratório Nacional de Luz Síncrotron (LNLS)-
dc.format.extent253-258-
dc.language.isoeng-
dc.publisherElsevier B.V. Sa-
dc.sourceWeb of Science-
dc.subjectDisordered systemsen
dc.subjectClustersen
dc.subjectChemical synthesisen
dc.subjectOrder-disorder effectsen
dc.subjectEXAFSen
dc.titleIntense blue and green photoluminescence emissions at room temperature in barium zirconate powdersen
dc.typeoutro-
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.contributor.institutionUniv Paris 12-
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Quim & Fis, BR-13565905 São Carlos, SP, Brazil-
dc.description.affiliationUNESP, Inst Quim, BR-14801907 Araraquara, SP, Brazil-
dc.description.affiliationUSP, Inst Fis São Carlos, BR-13560970 São Carlos, SP, Brazil-
dc.description.affiliationUniv Paris 12, Fac Sci & Technol, F-94010 Creteil, France-
dc.description.affiliationUnespUNESP, Inst Quim, BR-14801907 Araraquara, SP, Brazil-
dc.identifier.doi10.1016/j.jallcom.2008.03.080-
dc.identifier.wosWOS:000265086300063-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal of Alloys and Compounds-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

There are no files associated with this item.
Show simple item record Show full item record   View Statistics
 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.