Tungsten oxide electrochromic film may be applied for preparing heat insulation glass. Wherein heat insulating glass is a heat-insulating glass that has various dings such as heat insulation, UV protection, safety and high transparency. And tungsten trioxide electrochromic thin film is a smart film that can turn common transparent glass into such a smart thermal insulating glass. In recent years, with the focus on energy conservation in China, tungsten trioxide electrochromic thin films have been gradually applied to buildings.
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So, why does the tungsten oxide electrochromic film have a higher light modulation range after heat treatment, and the initial transmittance is much higher than the initial transmittance of the film before heat treatment? According to experts, this is because the film structure after heat treatment is more compact, and the film structure before heat treatment is loose. When lithium ions are continuously injected and removed from the film, the loose structure of the film collapses, thus making the electrochromic properties of such smart film are diminished.
