Tungsten trioxide is a typical cathode electrochromic material for preparing WO3 film, which has the advantages of large light modulation range, high color change efficiency and good cycle reversibility, so it can be used for producing a new electrochromic device. Wherein, WO3 and WO3 electrochromic film have been extensively studied.
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In general, what should be considered for the preparation of electrochromic devices are performance indicators. So, what are the important performance indicators that characterize electrochromic devices? Cycle stability. When a coloring voltage and a bleaching voltage are continuously applied to the electrochromic device, the electrochromic device continuously circulates between the colored state and the bleached state. At this time, the stability was evaluated by measuring the relationship between the number of cycles and the discoloration performance of the electrochromic device, such as the transmittance of light, the response time, and the like. When the discoloration performance of the electrochromic device fails to meet the application requirements, the number of cycles is the cycle stability value of the electrochromic device.
