Yellow Tungsten Oxide Applied for All-solid-state Electrochromic Smart Window

Yellow tungsten oxide, or tungsten trioxide, has excellent optical adjusting properties and therefore it may be used to produce an all-solid-state electrochromic smart window. According to experts, WO3 electrochromic film is considered to be the most promising inorganic electrochromic material used in construction and automotive windows.

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Experts say that the smart window has a high transmittance in the visible and near-infrared regions when it is in a bleached state, and has a certain light transmission in the visible region and the infrared transmittance is below 5% when the color is colored. In fact, all-solid smart windows have been increasingly studied by people. China and a few developed countries have already listed this material as a new generation of energy-saving materials in this century. At present, the research on the properties of this material will be mature, and the research on WO3 electrochromic materials is gradually moving toward large-area applications.