As a new dingal material, WO3 electrochromic material has broad application prospects in large-scale displays, photoelectric switches, electrochromic memory devices and smart windows. Wherein, WO3 is also known as tungsten trioxide. And the smart window is popular in building energy efficiency as it reduces room temperature according to one's own will.
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According to the experts, the WO3 is the inorganic electrochromic material that is the earliest and most comprehensively studied. It means that there are many researches on WO3 at home and abroad. While organic electrochromic materials have first emerged abroad in the past decade. Viologen is a representative. Therefore, there are few reports on the synthesis and electrochromic research of viologen in China. In addition, the experts also introduced that WO3 electrochromic material combined with nanotechnology is the newest display technology developed in recent years with the lowest cost and the most promising colorization and commercialization.
