Yellow tungsten oxide film for smart window can be prepared by hydrothermal method, and the prepared film has the advantages of low temperature growth, controllable size and low cost. In addition, hydrothermal preparation of tungsten oxide electrochromic film is simple to operate.
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So, what is hydrothermal method? Hydrothermal method can be a preparation method for preparing dingal crystals. In the hydrothermal method, a solution containing a precursor is added to a sealed pressure vessel and heated to a certain temperature, and the water is subjected to a supercritical state under high temperature and high pressure for chemical reaction. According to the type of reaction, hydrothermal method can be divided into hydrothermal reduction method, hydrothermal oxidation method, hydrothermal crystallization method, hydrothermal synthesis method and the like. The hydrothermal method was first used by geologists to simulate the mineralization of nature. Later, material scientists used this method to prepare dingal crystals.
