WO3 nano powder is an electrochromic material that can adjust its optical properties continuously and reversibly by changing the external electric field, so it may be prepared into a smart window, to dynamically adjust the input or output of solar energy. Wherein, the tungsten oxide nano particles realize its dings of thermal insulation and heat preservation in the form of a transparent electrochromic thin film.
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The tungsten oxide electrochromic window can achieve continuous and reversible changes in optical density with low power consumption. Therefore, as an energy-saving window, such environmentally-friendly window has been more and more widely used in construction, automobiles, aircraft and other fields. Therefore, countries around the world have invested a lot of manpower and material resources to develop smart windows. For example, some experts have assembled tungsten trioxide and Prussian blue complementary solid-state smart windows using a polymethylmethacrylate gel electrolyte with room temperature high ionic conductivity (2x10-3S/cm).
