dc.contributorUniversidade Federal de São Carlos (UFSCar)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:22:49Z
dc.date.accessioned2022-10-05T18:11:44Z
dc.date.available2014-05-27T11:22:49Z
dc.date.available2022-10-05T18:11:44Z
dc.date.created2014-05-27T11:22:49Z
dc.date.issued2008-03-27
dc.identifierDefect and Diffusion Forum, v. 273-276, p. 479-484.
dc.identifier1012-0386
dc.identifierhttp://hdl.handle.net/11449/70350
dc.identifier10.4028/www.scientific.net/DDF.273-276.479
dc.identifier2-s2.0-40949144941
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3919663
dc.description.abstractVisible photoluminescence was generated in standard soda-lime-silica glass powder, mechanically milled in a high-energy attrition mill. The broad emission band maximum shows a linear dependence on the exciting wavelength, suggesting the possibility to tune the PL emission. The photoluminescence was attributed to defect generation related to unsatisfied chemical bonds due to the high surface area. Raman scattering and ultraviolet-visible optical reflectance measurements corroborate this assertion. Transmission electron microscopy measurements indicate that the powder is composed by nanocrystallites with about 10-20 nanometers immersed in an amorphous media.
dc.languageeng
dc.relationDefect and Diffusion Forum
dc.relation0,129
dc.rightsAcesso aberto
dc.sourceScopus
dc.subjectAttrition mill
dc.subjectPhotoluminescence
dc.subjectSilica glass
dc.subjectSurface defects
dc.subjectEmission band
dc.subjectHigh-energy attrition mill
dc.subjectOptical reflectance measurements
dc.subjectCrystal defects
dc.subjectMechanical alloying
dc.subjectPowder metallurgy
dc.subjectReflectometers
dc.subjectTransmission electron microscopy
dc.subjectFused silica
dc.titleDefect-induced photoluminescence of powdered silica glass
dc.typeTrabalho apresentado em evento


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