Tungsten Trioxide Film Applied for Electrochromic Device

Tungsten trioxide film is an important inorganic electrochromic material that can be used to develop an electrochromic device. When it comes to electrochromism, you may think of China electrochromic enterprises. Compared with similar foreign companies, there are many problems such as small area, lack of independent intellectual property rights, and few types of products in China’s companies. Therefore, enterprise development and international market development are limited.

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Moreover, the research and development units of China electrochromic materials and devices are mostly universities and research institutes, such as the Institute of Chemistry of the Chinese Academy of Sciences, the University of Science and Technology, Peking University, and Xiamen University. They have achieved certain results in the research of electrochromic materials and devices. Certainly, organic electrochromic materials can also be used to prepare electrochromic devices. For example, a team of experts developed a polymer-based electrochromic material. They designed an organic electrochromic device by incorporating an organic dye into the electrochromic material of polythiophene. However, since the performance stability of the polymer material is poor, the life of the prepared device is short.

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