Tunable visible photoluminescence of powdered silica glass

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dc.contributor.authorPizani, P. S.
dc.contributor.authorJoya, M. R.
dc.contributor.authorPontes, Fenelon Martinho Lima [UNESP]
dc.contributor.authorSantos, L. P. S.
dc.contributor.authorGodinho, M.
dc.contributor.authorLeite, E. R.
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:26:57Z
dc.date.available2014-05-20T13:26:57Z
dc.date.issued2008-01-15
dc.description.abstractintense photoluminescence in the visible region was observed at room temperature in standard soda-lime-silica glass powder, mechanically milled in a high-energy attrition mill. The emission band maximum shows an interesting dependence on the exciting wavelength, suggesting the possibility to tune the PL emission. These findings indicate that the photoluminescence may be directly related to unsatisfied chemical bonds correlated with the high surface area. The Raman scattering and ultraviolet-visible optical reflectance measurements corroborate this assertion. Transmission electron microscopy measurements indicate that samples milled more than 10 h present the formation of nanocrystallites with about 10-20 nm. (C) 2007 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Fis, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias, Dept Quim, São Paulo, Brazil
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Quim, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias, Dept Quim, São Paulo, Brazil
dc.format.extent476-479
dc.identifierhttp://dx.doi.org/10.1016/j.jnoncrysol.2007.07.053
dc.identifier.citationJournal of Non-crystalline Solids. Amsterdam: Elsevier B.V., v. 354, n. 2-9, p. 476-479, 2008.
dc.identifier.doi10.1016/j.jnoncrysol.2007.07.053
dc.identifier.issn0022-3093
dc.identifier.lattes1159480346990821
dc.identifier.orcid0000-0001-6086-5303
dc.identifier.urihttp://hdl.handle.net/11449/8768
dc.identifier.wosWOS:000252860800070
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Non-Crystalline Solids
dc.relation.ispartofjcr2.488
dc.relation.ispartofsjr0,722
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectRaman scatteringen
dc.subjectluminescenceen
dc.subjectsoda-lime-silicaen
dc.subjectshort-range orderen
dc.titleTunable visible photoluminescence of powdered silica glassen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes1159480346990821[3]
unesp.author.orcid0000-0002-2843-8843[4]
unesp.author.orcid0000-0002-4209-1698[2]
unesp.author.orcid0000-0001-8062-7791[7]
unesp.author.orcid0000-0002-5914-1671[1]
unesp.author.orcid0000-0001-6086-5303[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt

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