Photoluminescence in amorphous PLZ

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dc.contributor.authorFreitas, GFG
dc.contributor.authorNasar, R. S.
dc.contributor.authorCerqueira, M.
dc.contributor.authorMelo, DMA
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorPizani, P. S.
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.institutionUniversidade Federal do Rio Grande do Norte (UFRN)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:28:22Z
dc.date.available2014-05-20T15:28:22Z
dc.date.issued2003-01-01
dc.description.abstractAmorphous and crystalline powder of PLZ was prepared by using the polymeric precursor method. TGA-DSC (Thermal analysis and Differential Scanning Calorimetry) shows the decomposition of polymeric resin, an amorphous phase and the crystallization of powder. Raman scattering of powder shows an amorphous and semicrystalline phase at 450 and 550 degreesC, respectively. XRD (X-ray diffraction pattern) of powder shows high crystallinity at 700 degreesC/3 h. PL (Photoluminescence) analysis of powder at 300 degreesC/3 h shows a broad asymmetric peak at 585 nm and increases of calcining time led to intense peaks of PL at 300 degreesC/6 h. This emission could be attributed to Zr --> O from the oxygen-2p orbitals to the zirconate-3d orbitals. (C) 2003 Elsevier Ltd and Techna S.r.l. All rights reserved.en
dc.description.affiliationUniv Fed Rio Grande Norte, Dept Quim, BR-59072970 Natal, RN, Brazil
dc.description.affiliationUniv Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil
dc.format.extent793-799
dc.identifierhttp://dx.doi.org/10.1016/S0272-8842(02)00232-8
dc.identifier.citationCeramics International. Oxford: Elsevier B.V., v. 29, n. 7, p. 793-799, 2003.
dc.identifier.doi10.1016/S0272-8842(02)00232-8
dc.identifier.issn0272-8842
dc.identifier.urihttp://hdl.handle.net/11449/38186
dc.identifier.wosWOS:000184749800009
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofCeramics International
dc.relation.ispartofjcr3.057
dc.relation.ispartofsjr0,784
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectlead zirconatept
dc.subjectphotoluminescent materialspt
dc.subjectamorphous materialspt
dc.titlePhotoluminescence in amorphous PLZen
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

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