WO3, mainly WO nano particles, or nano particle size tungsten trioxide, is an important cathode electrochromic material, which is classified according to the redox mode of the colored state of the inorganic electrochromic material, and the other type is an anode electrochromic material. The so-called cathode electrochromic material refers to a type of material which is colorless in the high-valent oxidation state and colored in the low-valent reduction state. In addition to tungsten trioxide, such materials are mainly molybdenum trioxide and titanium dioxide.

Nano crystalline tungsten oxide film is more and more widely applied in smart windows. And it is more and more common for people to know such an environmentally friendly heat insulation material. Therefore, it is imperative to prepare a WO3 electrochromic film with superior electrochromic properties in accordance with the needs of the times. So how to improve the electrochromic properties of the tungsten oxide electrochromic film?

Now, when it comes to electrochromism, many people think of tungsten trioxide. So, do you have a certain understanding of the mechanism of the electrochromic materials proposed by scientists? Scientists have proposed numerous models and assumptions. What are the models that are widely accepted and widely used?

WO3 smart window is one of the common new building energy saving solutions. As you may have known, the visible light transmittance, heat transfer coefficient, and heat shielding coefficient of passively regulated energy-saving glass such as low-emissivity glass, vacuum glass, and insulating glass are fixed in relation to glass lighting and energy saving. Therefore, these glasses cannot meet the requirements of all consumer groups. And therefore, smart glass using nano particle size tungsten trioxide as an electrochromic material appeared.