WO3 coated glass can be prepared by sputtering process. At present, some foreign companies have mass-produced tungsten trioxide coated glass by sputtering method. According to experts, such method has the advantages of uniform film thickness, strong adhesion between the film and the substrate, so it is suitable for mass production.

Porous WO3 electrochromic film can be prepared by anodic oxidation process. Experts say that the tungsten trioxide electrochromic film prepared by anodic oxidation method tends to have a loose porous structure, which is more conducive to ion insertion and extraction, so that it has better electrochromic properties.

Tungsten trioxide based inorganic electrochromic film can be prepared by an inkjet printing film forming process. As you may have known, with the rapid development of electronic devices, printing electronic technology has increasingly become the focus of academic field and industrial circles.

WO3 electrochromic film is a new type of electrochromic material, which is more and more widely used in the production of smart glass. According to experts, the preparation method of tungsten trioxide film covers almost all the preparation technologies of the film electrode.