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Optical and structural properties of Mn2+ doped PbGeO3-SbPO4 glasses and glass-ceramics

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dc.contributor.authorVolpi, V.
dc.contributor.authorMontesso, M. [UNESP]
dc.contributor.authorRibeiro, S. J. L. [UNESP]
dc.contributor.authorViali, W. R.
dc.contributor.authorMagon, C. J.
dc.contributor.authorSilva, I. D. A.
dc.contributor.authorDonoso, J. P.
dc.contributor.authorNalin, M. [UNESP]
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2018-11-27T06:00:16Z
dc.date.available2018-11-27T06:00:16Z
dc.date.issued2016-01-01
dc.description.abstractThis paper shows the study of optical and structural properties of SbPO4-PbGeO3-MnCl2 glass and glass-ceramics. Glass was prepared by melting-quenching methodology while the glass ceramic was obtained by controlled thermal treatment of the glass. The UV-Vis results show that the glass presents only Mn2+ species, but, the thermal treatment leads to oxidation of Mn2+ to Mn3+ species, what was evidenced by an absorption band in the visible range. High resolution transmission electron microscopy shows the presence of nanocrystalline phases of Mn2O3 and PbGeO3 confirming the formation of a glass-ceramic Electron paramagnetic resonance measurements suggest that manganese ions occupy only one environment in the glass. On the other hand, for glass-ceramic at least three different structural sites were identified by simulation of the EPR signal. (C) 2015 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Fed Sao Carlos, Dept Chem, BR-13560 Sao Carlos, SP, Brazil
dc.description.affiliationSao Paulo State Univ, Inst Chem, Araraquara, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Inst Phys, Sao Carlos, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Inst Chem, Araraquara, SP, Brazil
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.sponsorshipIdCAPES: 2654/2011
dc.description.sponsorshipIdCAPES: 2013/07793-6
dc.format.extent135-139
dc.identifierhttp://dx.doi.org/10.1016/j.jnoncrysol.2015.04.022
dc.identifier.citationJournal Of Non-crystalline Solids. Amsterdam: Elsevier Science Bv, v. 431, p. 135-139, 2016.
dc.identifier.doi10.1016/j.jnoncrysol.2015.04.022
dc.identifier.fileWOS000367126600027.pdf
dc.identifier.issn0022-3093
dc.identifier.urihttp://hdl.handle.net/11449/165015
dc.identifier.wosWOS:000367126600027
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal Of Non-crystalline Solids
dc.relation.ispartofsjr0,722
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectGlass
dc.subjectGlass-ceramic
dc.subjectManganese
dc.subjectUV-Vis
dc.subjectEPR
dc.titleOptical and structural properties of Mn2+ doped PbGeO3-SbPO4 glasses and glass-ceramicsen
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.departmentQuímica Inorgânica - IQARpt

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Araraquara - IQAR - Instituto de Química