WO3 nanopowder can be used to prepare a smart window or an electrochromic window. And the window can be freely adjusted according to people's needs to shield heat and ultraviolet, so the application prospect of tungsten trioxide is broad. Since the reversible electrochromism of WO3 vapor-deposited film was published by Webb in 1973, research in electrochromism has been widely done all over the world.

Yellow tungsten oxide nanopowder, or tungsten trioxide nano powder, is an important raw material for preparing an electrochromic film, which is more and more widely applied to building glass to obtain smart glass with excellent optical properties. For example, some experts have prepared WO3 films of different temperatures on FTO conductive glass by pulsed DC reactive magnetron sputtering method.

When it comes to electrochromism, you may think of Ti-doped WO3 thin film – the widely used electrochromic material for obtaining smart glass with heat insulation performance. According to experts, Ti-doped WO3 film is a transparent electrochromic film that can be coated on FTO transparent conductive glass by pulsed DC reactive magnetron sputtering at different substrate temperatures. At the same time, you may also recall the findings of the experts:

When it comes to electrochromism, many people will think of WO3 film and Ti doped tungsten trioxide film, which may be applied to building glass for cooling the room in summer and warming the room in winter. And you may know that experts prepared Ti-doped WO3 films to study the effects of different oxygen partial pressures on the structural properties of the films. You even know the specific preparation steps, just shown as follows: