Japanese Journal of Applied Physics · 1991 · 44 citations · 8 references
Natural SciencesChemistryMaterials ScienceElectrochemical EngineeringElectrochemistryThin FilmsElectrochemical CellsElectrode MaterialsElectrode PotentialsElectrode-electrolyte InterfacesElectrolyte MaterialsElectrolyte SolutionsElectrochemical BehaviorElectrochemical MechanismsElectrochromic DevicesElectrochromic Thin FilmsElectrolyte ChemistryElectrolyte EffectsHeat Treatment EffectsWater Content Variation
The electrochemical properties of anodically electrodeposited iridium oxide films are investigated for application to transmittance variable cells. The reactivity of electrochromic reaction of the film increases with the increase in water content in LiClO 4 propylene carbonate electrolyte, and decreases with increasing temperature of the heat treatment after electrodeposition. The coloration potential E of the film depends on the proton activity in the electrolyte, and increases linearly with the hydrogen electrode potential E ' of the electrolyte at a slope of 1.0. This means that the coloration is caused by the release of H + from the film or by the injection of OH - into the film. The reliability of transmittance variable cells made with the films is tested.
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Electrochromism in anodic iridium oxide films
S. Gottesfeld, J. D. E. McIntyre, G. Beni et al. · Applied Physics Letters · 1978 · 175 citations
Electrochromism in WO3 thin films. I. LiClO4-propylene carbonate-water electrolytes
O. Bohnké, C. Bohnké, Guy Robert et al. · Solid State Ionics · 1982 · 82 citations