WO3 can be prepared into a WO3 film, and then be applied for the production of a new electrochromic device. Wherein, the WO3 electrochromic film is the typical representative of the earliest and most studied cathode electrochromic material.
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Experts say that the electrochromic device is a typical optoelectronic device that combines an electronic film with an optical film. By applying a lower external voltage to the device, a reversible change in color can be achieved. Experts also introduced that electrochromic devices are the carrier of the value of electrochromic materials, and the performance of electrochromic devices determines the application value of electrochromic materials. The practical application of electrochromic devices should meet the following basic requirements: long cycle life; good stability; short color response time; good reversibility of electrochemical redox; high contrast of color change; good color memory.
