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

dc.contributorUniversidade Federal de São Carlos (UFSCar)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade de São Paulo (USP)
dc.date.accessioned2018-11-27T06:00:16Z
dc.date.available2018-11-27T06:00:16Z
dc.date.created2018-11-27T06:00:16Z
dc.date.issued2016-01-01
dc.identifierJournal Of Non-crystalline Solids. Amsterdam: Elsevier Science Bv, v. 431, p. 135-139, 2016.
dc.identifier0022-3093
dc.identifierhttp://hdl.handle.net/11449/165015
dc.identifier10.1016/j.jnoncrysol.2015.04.022
dc.identifierWOS:000367126600027
dc.identifierWOS000367126600027.pdf
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.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationJournal Of Non-crystalline Solids
dc.relation0,722
dc.rightsAcesso 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-ceramics
dc.typeArtículos de revistas


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