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Electrochromic effects of Li-W-O films under ultraviolet light exposure

Journal Article · · J. Electrochem. Soc.; (United States)
DOI:https://doi.org/10.1149/1.2109062· OSTI ID:7008173

Electrochromic effects of WO/sub 3/ films have been extensively studied. In these electrochromic films, the injection of both I-group ions and electrons form a tungsten bronze (color center) structure (M/sub x/WO/sub 3/, x=0-1, M is H, Li, or Na). It is known that an intervalence electron transfer between W/sup +6/ and W/sup +5/ causes blue coloration in these films. Previously, the authors reported a new fabrication method and the properties of double-layered Li-W-O films. The WO/sub 3/ films exhibit photochromic effects as well as electrochromic effects. In this paper they describe the electrochromic effects of the double-layered Li-W-O films under UV light.

Research Organization:
Matsushita Electric Industrial Co. Ltd., Central Research Labs., Moriguchi, Osaka 570
OSTI ID:
7008173
Journal Information:
J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 133:9; ISSN JESOA
Country of Publication:
United States
Language:
English