Sol-gel deposition of electrochromic copper oxide films
- Istanbul Technical Univ. (Turkey). Dept. of Physics
This paper discusses the optical and electrochromic properties of Cu{sub x}O films deposited by sol-gel process. UV-VIS-NIR spectroscopy, SEM, X-ray diffraction and X-ray photoelectron spectroscopy have been employed in a study of structures and optical properties of coatings. The sol-gel process offers new approaches to optical properties of coatings prepared by the acid catalyzed reactions of alkoxides. Cu{sub x}O polymeric solutions are formed upon hydrolysis-condensation of copper ethoxide. Transparent amorphous Cu{sub x}O coatings ranging in the thickness from 43 to 615 nm, were deposited on Corning 7059 and transparent conducting plates from polymeric solutions. These films exhibited reversible electrochromism that their color turn from transparent to pale brown. The combined effect of firing temperature (in the range of 70--450 C) on optical properties and response time of these films are investigated. Significant changes in optical properties and electrochromic properties have been observed with firing temperature.
- OSTI ID:
- 201306
- Report Number(s):
- CONF-930722--; ISBN 0-8194-1266-X
- Country of Publication:
- United States
- Language:
- English
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