Electrochromic film can be a WO3 film. According to experts, tungsten trioxide electrochromic thin film is the most studied inorganic electrochromic material. So how to prepare WO3 electrochromic film? - By sol dip-coating method.

WO3 for glare-free mirror is a very popular and the most studied inorganic electrochromic material. Presumably, many car owners know that liquid crystal materials are often used to prepare the car rearview mirrors currently, which can only be converted between light and dark. And it often gives people’s eyes an uncomfortable feeling. Especially, when the summer sun is strong, strong sunlight can stab people's eyes and cause traffic accidents.

Tungstic acid for preparing an electrochromic film refers to tungstic acid powder. The tungstic acid powder can be mainly used in the production stage of WO3 sol in the preparation of tungsten oxide electrochromic film. So, how to prepare WO3 sol with tungstic acid?

Tungsten oxide for all-solid-state electrochromic glass has been particularly concerned and studied in the last century, especially in recent years. So, what makes tungsten oxide electrochromic glass for applying in green smart buildings so popular?