Nanometer yellow tungsten oxide for producing thermal insulation dispersion liquid not only has excellent photochromic properties, but also has electrochromic properties. It means that nano grain size yellow tungsten oxide is not only a type of thermal insulation, but also an electrochromic material. The yellow tungsten oxide with good electrochromic property is a new dingal material that has a wide range of applications in the fields of information, electronics, energy, construction and defense. A device made of an electrochromic material such as yellow tungsten oxide is called an electrochromic device.
So, what is electrochromism? The so-called electrochromism is actually utilizing an electric field to produce an electrochemical redox reaction, which causes a change in the light transmission characteristics, and in turn causes a color change. In the case of yellow tungsten oxide, it is the gradual process between transparent and blue. Certainly, the thin film is still transparent, but the color rendering is not the same.
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