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High fluorescence quantum efficiency of CdSe/ZnS quantum dots embedded in GPTS/TEOS-derived organic/silica hybrid colloids

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dc.contributor.authorAlencar, Lorena D. S. [UNESP]
dc.contributor.authorPilla, Viviane
dc.contributor.authorAndrade, Acacio A.
dc.contributor.authorDonatti, Dario A. [UNESP]
dc.contributor.authorVollet, Dimas R. [UNESP]
dc.contributor.authorDe Vicente, Fabio S. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Uberlândia (UFU)
dc.date.accessioned2014-12-03T13:11:26Z
dc.date.available2014-12-03T13:11:26Z
dc.date.issued2014-04-18
dc.description.abstractThe thermo-optical properties of CdSe/ZnS core-shell quantum dots (QDs) embedded in organic/silica hybrid colloids (organic/silica sols) were measured using the thermal lens (TL) technique. GPTS/TEOS-derived organic/silica hybrid colloids were prepared by a sol-gel method from the hydrolysis reaction of 3-glycidoxypropyltrimethoxysilane (GPTS) and tetraethylorthosilicate (TEOS) alkoxides. TL transient measurements were performed to study the effect of the CdSe/ZnS QDs (with three different sizes similar to 2.4, 2.9 and 4.4 nm) embedded in GPTS/TEOS-derived organic/silica sols. The thermal diffusivity, the fraction thermal load and the radiative quantum efficiency (eta) were determined. Fluorescence measurements corroborate the TL results and high eta values were obtained. (C) 2014 Elsevier B. V. All rights reserved.en
dc.description.affiliationUniv Estadual Paulista UNESP, Dept Fis, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUniv Fed Uberlandia, Inst Fis, BR-38400902 Uberlandia, MG, Brazil
dc.description.affiliationUnespUniv Estadual Paulista UNESP, Dept Fis, BR-13506900 Rio Claro, SP, Brazil
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.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.description.sponsorshipFundação para o Desenvolvimento da UNESP (FUNDUNESP)
dc.description.sponsorshipPROPP-UFU
dc.format.extent63-67
dc.identifierhttp://dx.doi.org/10.1016/j.cplett.2014.03.016
dc.identifier.citationChemical Physics Letters. Amsterdam: Elsevier Science Bv, v. 599, p. 63-67, 2014.
dc.identifier.doi10.1016/j.cplett.2014.03.016
dc.identifier.issn0009-2614
dc.identifier.lattes3538107401166553
dc.identifier.lattes8408216349957378
dc.identifier.orcid0000-0001-7696-3004
dc.identifier.urihttp://hdl.handle.net/11449/113129
dc.identifier.wosWOS:000334512400011
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofChemical Physics Letters
dc.relation.ispartofjcr1.686
dc.relation.ispartofsjr0,656
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleHigh fluorescence quantum efficiency of CdSe/ZnS quantum dots embedded in GPTS/TEOS-derived organic/silica hybrid colloidsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
unesp.author.lattes3538107401166553
unesp.author.lattes8408216349957378[6]
unesp.author.orcid0000-0001-7696-3004[6]
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Geociências e Ciências Exatas, Rio Claropt
unesp.departmentFísica - IGCEpt

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Rio Claro - IGCE - Instituto de Geociências e Ciências Exatas