Photobleaching of sol-gel-derived germanium oxide glass thin films

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Photobleaching of the optical absorption band in the 5-eV region of sol-gel-derived germanium oxide glass thin films was examined with the irradiation of the 5-eV light. The photobleaching represented by the saturated absorption coefficient change (-Delta alpha) and the ratio of the neutral oxygen monovacancies to neutral oxygen divacancies concentrations for the germanium oxide were 175 cm(-1) and 0.113, respectively. These values are larger than those of the pure germanium oxide bulk glass as well as germanosilicate thin films. The changes in bonding configuration around Ge atom by ultraviolet illumination were analyzed using x-ray photoelectron spectroscopy.
Publisher
MATERIALS RESEARCH SOCIETY
Issue Date
2000-02
Language
English
Article Type
Article
Citation

JOURNAL OF MATERIALS RESEARCH, v.15, no.2, pp.282 - 284

ISSN
0884-2914
URI
http://hdl.handle.net/10203/4320
Appears in Collection
MS-Journal Papers(저널논문)
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