WO3 film is used as an EC film that has a color-changing function in a five-layer film of an electrochromic smart window. So, do you know how the electrochromic window works? Experts take cathode coloring electrochromic materials as an example to introduce the working process of electrochromic devices.

Tungsten oxide, WO3-x, may be used to prepare transparent thermal insulation material for applying in architectural glass such as sun room, greenhouse, and glass windows of vehicles such as airplanes, to make these glasses have the characteristics of heat insulation, heat preservation and energy conservation, and environmental protection. With the promotion of its application, tungsten oxide nanopowder is becoming more and more known to people.

Tungsten trioxide can be prepared into a WO3 electrochromic film for applying in the preparation of a semisolid smart window. Specifically, some experts have obtained a tungsten oxide electrochromic film by radio frequency magnetron sputtering and a nickel oxide film by DC magnetron reactive sputtering.

WO3, more precisely, a tungsten trioxide film, is an important raw material for preparing an electrochromic smart window - one of the best electrochromic materials for preparing electrochromic devices. So, in general, what performance should the electrochromic window have?