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dc.contributor.authorde Assumpcao, T. A. A.
dc.contributor.authorKassab, L. R. P. [UNESP]
dc.contributor.authorGomes, A. S. L.
dc.contributor.authorde Araujo, C. B.
dc.contributor.authorWetter, N. U.
dc.identifier.citationApplied Physics B-lasers and Optics. New York: Springer, v. 103, n. 1, p. 165-169, 2011.
dc.description.abstractNucleation of silver nanoparticles (NPs) in Tm3+ doped PbO-GeO2 (PGO) glass is reported. The influence of the heat treatment on the nucleation of silver NPs is studied by means of transmission electron microscopy and optical spectroscopy. Two heat treatment procedures were applied in order to compare their performance. Observation of infrared-to-visible frequency upconversion (UC) luminescence of Tm3+ ions is reported and correlated with the heat-treatment procedure. Enhancement of the UC emission for samples heat treated during various time intervals is attributed to the increased local field in the vicinity of the NPs. Quenching of the UC signal was also observed and correlated with the growth of NPs amount and size.en
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco (FACEPE)
dc.relation.ispartofApplied Physics B: Lasers and Optics
dc.sourceWeb of Science
dc.titleInfluence of the heat treatment on the nucleation of silver nanoparticles in Tm3+ doped PbO-GeO2 glassesen
dc.contributor.institutionUniversidade Federal de Pernambuco (UFPE)
dc.contributor.institutionInstituto de Pesquisas Energéticas e Nucleares (IPEN)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationUniversidade Federal de Pernambuco (UFPE), Dept Fis, BR-50670901 Recife, PE, Brazil
dc.description.affiliationIPEN CNEN SP, Ctr Lasers & Aplicacoes, BR-05508000 São Paulo, Brazil
dc.description.affiliationUniv São Paulo, Escola Politecn, Dept Engn Sistemas Eletron, BR-05508900 São Paulo, Brazil
dc.description.affiliationFac Tecnol São Paulo FATEC SP, Lab Vidros & Datacao, CEETEPS UNESP, BR-01124060 São Paulo, Brazil
dc.description.affiliationUnespFac Tecnol São Paulo FATEC SP, Lab Vidros & Datacao, CEETEPS UNESP, BR-01124060 São Paulo, Brazil
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