Optical properties of SiO2-GeO2 glasses made by sol-gel method

Autor:	Yuuji Hirai, Kanji Kubota, Takumi Fukuda
Rok vydání:	1987
Předmět:	Analytical chemistry Dangling bond Condensed Matter Physics Fluorescence Silicate Electronic Optical and Magnetic Materials Ion chemistry.chemical_compound symbols.namesake chemistry Materials Chemistry Ceramics and Composites symbols Germanate Refractive index Raman scattering Sol-gel
Zdroj:	Journal of Non-Crystalline Solids. 93:431-435
ISSN:	0022-3093
DOI:	10.1016/s0022-3093(87)80189-8
Popis:	SiO 2 -GeO 2 glasses have been prepared by the sol-gel method, and Raman scattering, fluorescence and refractive indices have been measured. Very broad fluorescence bands due to Ge ions are observed around 530 nm. The fluorescence intensity depends on the water content of glass. Samples heated to 800 ° C have no fluorescence band in this region. We discuss the origin of this fluorescence center as due to the defect structure of the dangling bond between Ge and O ions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b54fec11b126c3734a5aa19d7a2314a8 https://doi.org/10.1016/s0022-3093(87)80189-8 Zobrazit plný text záznamu