Tungsten oxide electrochromic film for smart glass can be prepared by magnetron sputtering method. In this regard, experts say that when the oxygen to argon ratio is a certain value, the optical modulation range of the electrochromic device is maximized. Then, as the oxygen partial pressure increases, the optical modulation range gradually decreases. But why can the oxygen partial pressure affect the optical modulation range of an electrochromic device?

Tungsten oxide electrochromic film for assembling thermal insulating glass can be prepared by magnetron sputtering method. While do you know the basic method of preparing tungsten oxide film by magnetron sputtering?

Tungsten oxide electrochromic film for heat insulating window glass can be prepared by screen printing method. In this regard, experts said that the transparency of tungsten oxide electrochromic thin film obtained by FTO conductive glass printing will decrease with the increase of the number of printing, and the transmittance of the film will decrease after heat treatment in the muffle furnace. But do you know why the transmittance of tungsten oxide electrochromic films is decreased after heat treatment?

Mo-doping tungsten oxide electrochromic film for smart window has a higher light modulation range than the tungsten oxide electrochromic film. As you may know, tungsten oxide has an optical band gap of about 3 eV, so it is a wide band gap semiconductor. And it is easy to form a non-ideal ratio compound. But why is the Mo-doped tungsten oxide electrochromic thin film having a higher light modulation range than undoped tungsten oxide electrochromic thin film?