Gasochromic films consist of an electrochromic layer such as WO3 and a very small amount of a catalyst. For sputtered or evaporated films the catalyst is usually coated onto the WO3 (Figure 1), whereas for sol-gel films a homogeneous distribution of the catalyst in the WO3 can also be achieved by adding salts of Pd or Pt to the sol.
KeywordsOxygen Vacancy Increase Film Thickness Tungsten Trioxide Exponential Time Dependence High Film Thickness
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- 5.T. Kudo, H. Okamoto, K. Matsumoto, Y. Sasaki, Peroxopolytungstic acids synthesized by direct reaction of tungsten or tungsten carbide with hydrogen peroxide, Inorg. Chim. Acta, 111, L27–L28 (1986)Google Scholar