Tungsten oxide, more precisely, tungsten trioxide, is a typical representative of inorganic electrochromic materials and an important raw material for the preparation of an inorganic electrochromic film. At present, electrochromic devices such as smart windows using tungsten trioxide as a dingal material have been industrialized in foreign countries. As you may have known, the electrochromic properties of WO3 directly affect the performance of the smart glass. So, what determines the electrochromic characteristics of WO3 electrochromic film?
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Experts say that the microstructure and chemical composition of the tungsten trioxide film determines its electrochromic properties. The electrochromic performance of the WO3 film varies depending on the method of preparation of the film and the atomic bulk density of the film produced by different process. The microstructure, electrochromic properties, and electrochemical properties of the electrochromic thin films produced by different preparation methods and process conditions are inevitably greatly different.
