WO3 powder for producing WO3-TiO2 electrochromic film has the advantages of large color range and high coloring efficiency, and therefore, it has received more extensive attention than other electrochromic materials. Experts said that smart glass prepared using such an electrochromic film as an electrochromic layer is considered to be one of the main development directions of building energy-saving glass. That is because such smart energy-saving glass can actively control the lighting and shading performance of glass, realize intelligence. Also, it consumes less electricity. And it is environmentally friendly.
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In addition, experts also introduced that electrochromic materials used in large-area building smart windows must meet the following conditions: large modulation amplitude, high coloring efficiency, low driving voltage, excellent cycle stability and durability. However, common tungsten oxide cannot meet the above requirements at the same time. Therefore, the key technology for making tungsten oxide suitable for large-area electrochromic smart windows is to improve the core properties related to electrochromism such as tungsten oxide color change cycle stability.
