Tungsten oxide powder may be applied for producing nano-ceramic color master with bright color, high temperature resistance, good light resistance, excellent weather resistance, and high transparency when it is applied in products. Tungsten oxide is also an electrochromic material with excellent properties. At present, the market application of electrochromic materials is limited to small-sized products such as automatic anti-glare automotive rearview mirrors, and aircraft portholes, etc.
Research on electrochromic materials was mostly concentrated on electronic display devices from the mid-1970s to the early 1980s. However, because of its limited color conversion rate, research has gradually turned to emerging fields such as smart windows. Although smart windows have less stringent response time requirements than display devices, the color conversion rate is still the focus of research and an important indicator for measuring the performance of electrochromic materials until now. Certainly, tungsten oxide also has photochromic properties and gasochromic properties so that it can be applied in gas sensors and other fields.
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