Tungsten trioxide may be applied for producing a heat insulation window glass – a smart glass that can adjust the color of the glass to achieve thermal insulation and heat preservation performance in accordance with the strength of the sun's rays. And it has been reported that a company can make an electrochromic glass that is completely powered by solar power and can be controlled by iPad wirelessly.

Yellow tungsten oxide, or tungsten trioxide, can be used to prepare an electrochromic film, and thus be used to produce an electrochromic smart glass. After half a century of development, people have achieved many results in the field of electrochromism. And these smart glasses have been put into use in certain areas. With the continuous development of science and technology, electrochromic materials and electrochromic devices will certainly play a more important role.

WO3 can be used to prepare an electrochromic thin film for the assembly of an electrochromic smart glass, thereby applying to construction, automotive or aircraft portholes. When it comes to electrochromic glass, the mechanism of electrochromism is thought of. In this regard, experts said that although the electrochromic mechanism has not been consistently concluded, for the electrochromic process of oxide films, experiments have been confirmed that a reversible change in the light absorption characteristics of the film appears with the injection or extraction of H+, Li+ plasma.

Tungsten oxide can be used to prepare an electrochromic film for applying to assemble an electrochromic smart glass, which has the following advantages: