Electrosteric colloidal stabilization for obtaining SrTiO3/TiO2 heterojunction: Microstructural evolution in the interface and photonics properties

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dc.contributor.authorAmoresi, Rafael A.C. [UNESP]
dc.contributor.authorTeodoro, Vinícius
dc.contributor.authorTeixeira, Guilhermina F. [UNESP]
dc.contributor.authorLi, Maximo S.
dc.contributor.authorSimões, Alexandre Z. [UNESP]
dc.contributor.authorPerazolli, Leinig A. [UNESP]
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorZaghete, Maria A. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2018-12-11T17:34:57Z
dc.date.available2018-12-11T17:34:57Z
dc.date.issued2018-04-01
dc.description.abstractResearches on solids heterojunctions has proven to be an important field for technological applications due to synergism achieved by interface phenomena. In this work, we present an understanding of SrTiO3/TiO2 interface and its effects on structural and microstructural characteristics, and relate them to photoluminescence properties of heterojunctions obtained by a simple method. It was observed that SrTiO3 proportion directly influences the structural order-disorder, as observed by X-Ray diffraction, Raman spectroscopy and Transmission electron microscopy. Photoluminescence behavior of heterojunction with 1% of SrTiO3 showed a shift to blue emission region compared to TiO2, and enhanced of emission intensity compared to SrTiO3, resulted from defects generated by interface effects, attracting possible applications on selective color emitter. Therefore, we conclude that in same materials phases, nature and concentration of structural defects has strong dependence of SrTiO3 concentration, which leads to different photoluminescence properties.en
dc.description.affiliationInterdisciplinary Laboratory of Electrochemistry and Ceramics LIEC – Chemistry Institute São Paulo State University – UNESP
dc.description.affiliationInterdisciplinary Laboratory of Electrochemistry and Ceramics LIEC – Department of Chemistry Universidade Federal de São Carlos – UFSCAR
dc.description.affiliationInstitute of Physics of São Carlos University of São Paulo – USP
dc.description.affiliationFaculty of Engineering of Guaratinguetá São Paulo State University – UNESP
dc.description.affiliationUnespInterdisciplinary Laboratory of Electrochemistry and Ceramics LIEC – Chemistry Institute São Paulo State University – UNESP
dc.description.affiliationUnespFaculty of Engineering of Guaratinguetá São Paulo State University – UNESP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: CEPID/CDMF – FAPESP: 2013/07296-2
dc.format.extent1621-1631
dc.identifierhttp://dx.doi.org/10.1016/j.jeurceramsoc.2017.10.056
dc.identifier.citationJournal of the European Ceramic Society, v. 38, n. 4, p. 1621-1631, 2018.
dc.identifier.doi10.1016/j.jeurceramsoc.2017.10.056
dc.identifier.file2-s2.0-85034998092.pdf
dc.identifier.issn1873-619X
dc.identifier.issn0955-2219
dc.identifier.scopus2-s2.0-85034998092
dc.identifier.urihttp://hdl.handle.net/11449/179386
dc.language.isoeng
dc.relation.ispartofJournal of the European Ceramic Society
dc.relation.ispartofsjr1,068
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectHeterojunction
dc.subjectInterface
dc.subjectPhotonic
dc.subjectSrTiO3/TiO2
dc.titleElectrosteric colloidal stabilization for obtaining SrTiO3/TiO2 heterojunction: Microstructural evolution in the interface and photonics propertiesen
dc.typeArtigo

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