New Counter-Electrodes Made of Iron Compound-Graphite Mixtures for WO3/Liquid Electrolyte Electrochromic Devices
- 1 June 1982
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 21 (6R), 926-929
- https://doi.org/10.1143/jjap.21.926
Abstract
New counter-electrodes for WO3/liquid electrolyte electrochromic devices were investigated for the purpose of stabilizing the counter-electrode potential. The potential of counter-electrodes made of an Fe2(WO4)3-graphite or FeK[Fe(CN)6]-graphite mixture is stable enough to drive the cells at a constant voltage. The values or the relative reversible electrode potential for the counter-electrodes with Fe2(WO4)3 and FeK[FC(CN)6] are +400 mV, and +200 mV, with respect to an Ag/AgCl reference electrode, respectively. This potential difference affects the coloration-bleach characteristics of the cells. When the cell is erased at a certain applied voltage, the erasing rate or a cell with the Fe2(WO4)3 counter-electrode is higher than that of a cell with the FeK[Fe(CN)6] counter-electrode.Keywords
This publication has 7 references indexed in Scilit:
- The Electrochromic Properties of Thermally Decomposed Films of an Organic Tungsten CompoundJapanese Journal of Applied Physics, 1981
- A Model for Electrochromic Tungstic Oxide Microstructure and DegradationJournal of the Electrochemical Society, 1981
- The Electrochromic Process at WO 3 Electrodes Prepared by Vacuum Evaporation and Anodic Oxidation of WJournal of the Electrochemical Society, 1979
- EMF Measurements on Electrochromic Amorphous Li x WO 3 FilmsJournal of the Electrochemical Society, 1978
- Electrochromism in Anodically Formed Tungsten Oxide FilmsJournal of the Electrochemical Society, 1978
- Electrochromism in Li x WO 3Journal of the Electrochemical Society, 1978
- Chemical and electrochemical stability of WO3 electrochromic films in liquid electrolytesJournal of Electronic Materials, 1978