Optical and electrical characterization of samaria-doped ceria

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dc.contributor.authorSOUZA, E.C.C.pt_BR
dc.contributor.authorBRITO, H.F.pt_BR
dc.contributor.authorMUCCILLO, E.N.S.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2014-07-15T13:40:27Zpt_BR
dc.date.accessioned2014-07-30T11:49:34Z
dc.date.available2014-07-15T13:40:27Zpt_BR
dc.date.available2014-07-30T11:49:34Z
dc.date.issued2010pt_BR
dc.description.abstractCe0.8Sm0.2O1.9 andCeO2 nanomaterials were prepared by a solution technique to produce an ultrafine particulate material with high sinterability. In this work, the structural characteristics, the photoluminescent behavior and the ionic conductivity of the synthesized materials are focused. The thermally decomposed material consists of less than 10 nm in diameter nanoparticles. The Raman spectrum of pure CeO2 consists of a single triple degenerate F2g model characteristic of the fluorite-like structure. The full width at half maximum of this band decreases linearly with increasing calcination temperature. The photoluminescence spectra show a broadened emission band assigned to the ligand-to-metal charge-transfer states O→Ce4+. The emission spectra of the Ce0.8Sm0.2O1.9 specimens present narrow bands arising from the 4G5/2 →6HJ transitions (J=5/2, 7/2, 9/2 and 11/2) of Sm3+ ion due to the efficient energy transfer from the O→Ce4+ transitions to the emitter 4G5/2 level. The ionic conductivity of sintered specimens shows a significant dependence on density.
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipIDFAPESP:04/00364-3pt_BR
dc.format.extent460-464pt_BR
dc.identifier.citationSOUZA, E.C.C.; BRITO, H.F.; MUCCILLO, E.N.S. Optical and electrical characterization of samaria-doped ceria. <b>Journal of Alloys and Compounds</b>, v. 491, n. 1-2, p. 460-464, 2010. DOI: <a href="https://dx.doi.org/10.1016/j.jallcom.2009.10.226">10.1016/j.jallcom.2009.10.226</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/4738.
dc.identifier.doi10.1016/j.jallcom.2009.10.226
dc.identifier.fasciculo1-2pt_BR
dc.identifier.issn0925-8388pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-9219-388X
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/4738pt_BR
dc.identifier.vol491pt_BR
dc.relation.ispartofJournal of Alloys and Compoundspt_BR
dc.rightsopenAccessen
dc.subjectsamarium oxidespt_BR
dc.subjectdoped materialspt_BR
dc.subjectcerium oxidespt_BR
dc.subjectsynthesispt_BR
dc.subjectraman spectroscopypt_BR
dc.subjectnanostructurespt_BR
dc.subjectelectric conductivitypt_BR
dc.subjectphotoluminescencept_BR
dc.subjectsinteringpt_BR
dc.subjectimpedance
dc.subjectspectroscopy
dc.titleOptical and electrical characterization of samaria-doped ceriapt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorELIANA NAVARRO DOS SANTOS MUCCILLO
ipen.autorEDUARDO CAETANO CAMILO DE SOUZA
ipen.codigoautor1298
ipen.codigoautor2747
ipen.contributor.ipenauthorELIANA NAVARRO DOS SANTOS MUCCILLO
ipen.contributor.ipenauthorEDUARDO CAETANO CAMILO DE SOUZA
ipen.date.recebimento10-01pt_BR
ipen.identifier.fi2.138pt_BR
ipen.identifier.ipendoc14482pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi1.500 - 2.999
ipen.type.genreArtigo
relation.isAuthorOfPublicationbc09f7ae-f25e-4f60-87a3-0c89989e8304
relation.isAuthorOfPublication4a04adda-1770-4e96-8992-8f515398f9fb
relation.isAuthorOfPublication.latestForDiscovery4a04adda-1770-4e96-8992-8f515398f9fb
sigepi.autor.atividadeSOUZA, E.C.C.:2747:720:Spt_BR
sigepi.autor.atividadeMUCCILLO, E.N.S.:1298:720:Npt_BR
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