REVIEW OF SOLID-STATE ELECTROCHROMIC COATINGS PRODUCED USING SOL-GEL TECHNIQUES

Solid state electrochromic (EC) devices are composed of multiple thin film layers in which each coating performs specific optical and electrical functions. This review describes the principles, physical configuration and the materials employed to make the EC devices. The merits of sol-gel method to deposit coatings for this application are discussed. Sol-gel activities to date for making these devices and coatings are summarized.