Tungsten trioxide powder is an important raw material for the preparation of an electrochromic layer in an electrochromic glass. According to experts, WO3 is the main electrochromic material for applying to assemble an EC glass. And Ni, V and TiO2 are often doped on the obtained WO3 film to improve its performance. Nowadays, electrochromic devices using WO3 as a dingal material have gradually become industrialized.
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Experts also introduced that the current research on electrochromic smart glass in China is still in the exploratory stage, and the materials selected for each layer in the structure are still in a lot of research. It is reported that ITO is the best material for the transparent conductive layer material. NiOx is the most studied material for the ion storage layer. The solid lithium salt is mostly studied for the electrolyte layer material. However, the solid lithium salt is affected by factors such as conductivity, sputtering speed and high temperature resistance of the target during sputtering process, which is the key to restricting the production of large-area electrochromic glass. In a word, all-solid-state inorganic electrochromic glass is the focus of the field of electrochromic devices.
