
Nano tungsten oxide may be applied in the field of thermal insulating glass with excellent thermal insulation properties and high visible light transmittance. Tungsten oxide also has electrochromic properties and therefore can be used on electrochromic devices. The electrochromic device is generally composed of five-layer structure, which can be divided into two transparent conductor layers (TC), a counter electrode layer (CE), an ion conductor layer (IC), and an electrochromic layer (EC) sandwiched therebetween. If tungsten oxide is used as an…