Structural and optical properties of Eu3+ and Mg2+ doped LiTaO3 obtained via the polymeric precursor method

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dc.contributor.authorGasparotto, G. [UNESP]
dc.contributor.authorCebim, Marco Aurelio [UNESP]
dc.contributor.authorGóes, M. S. [UNESP]
dc.contributor.authorDavolos, Marian Rosaly [UNESP]
dc.contributor.authorPaiva-Santos, C. O. [UNESP]
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorZaghete, M. A. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:24:34Z
dc.date.available2014-05-27T11:24:34Z
dc.date.issued2009-12-01
dc.description.abstractThis work reports on the pure lithium tantalate (LiTaO3), europium (III)-doped LiTaO3 and magnesium (II)-europium (III)-doped LiTaO3 preparared by the polymeric precursor method, using four different powered samples of Eu3+ ion concentrations 0.1 to 1at %. Structural and optical properties of powders have been studied. The different possible sites occupied by the rare earth were examined. The phase contents and lattice parameters were studied by the Rietveld method and the structural disorder in the LiTaO3 host caused by Eu3+ ions was analyzed. Results indicated LiTaO3 free of secondary phases at 650°C and the photoluminescence (PL) emission spectra showed the characteristic sharp emission bands given by Eu3+ ions when they are excited at a wavelength of 399 nm. An increase of dopants contents caused a non-homogeneous broadening and showed a slightly larger one when Mg was added. A displacement of the transition 5D0-7F0 to shorter wavelengths as function of Eu3+ concentration was also noticed.en
dc.description.affiliationInstituto de Química Universidade Estadual Paulista, Francisco Degni s/n, Quitandinha, 14800-900, Araraquara, SP
dc.description.affiliationUnespInstituto de Química Universidade Estadual Paulista, Francisco Degni s/n, Quitandinha, 14800-900, Araraquara, SP
dc.format.extent38-42
dc.identifier.citation11th International Conference and Exhibition of the European Ceramic Society 2009, v. 1, p. 38-42.
dc.identifier.lattes4284809342546287
dc.identifier.lattes2034352556339501
dc.identifier.scopus2-s2.0-84879013847
dc.identifier.urihttp://hdl.handle.net/11449/71460
dc.language.isoeng
dc.relation.ispartof11th International Conference and Exhibition of the European Ceramic Society 2009
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectIon concentrations
dc.subjectLithium tantalate
dc.subjectPhotoluminescence emission
dc.subjectPolymeric precursor methods
dc.subjectSecondary phasis
dc.subjectShorter wavelength
dc.subjectStructural and optical properties
dc.subjectStructural disorders
dc.subjectCeramic materials
dc.subjectDoping (additives)
dc.subjectEmission spectroscopy
dc.subjectEuropium
dc.subjectExhibitions
dc.subjectOptical properties
dc.subjectRietveld method
dc.subjectPolymers
dc.titleStructural and optical properties of Eu3+ and Mg2+ doped LiTaO3 obtained via the polymeric precursor methoden
dc.typeTrabalho apresentado em evento
unesp.author.lattes4284809342546287
unesp.author.lattes2034352556339501
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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