Two-dimensional hydrated tungsten trioxide can be applied to produce electrochromic film. And the two-dimensional hydrated tungsten trioxide EC film can be prepared by hydrothermal method. Then, how to prepare hydrated WO3 electrochromic films by hydrothermal method?
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Experts said that the low-boiling environmentally friendly solvent (ethanol) is needed instead of conventional solvent to prepare low-temperature short-time two-dimensional hydrated tungsten trioxide nanosheet film, and the performance of hydrated WO3 electrochromic film is realized by the introduction of structure directing agent. Some experts have used ethylene glycol with a large amount of hydroxyl as a solvent to directly grow a nested hydrated tungsten trioxide nanosheet film on the surface of FTO conductive glass (no seed layer) to study the effect of the seed layer on the electrochromic properties. For the EC film of nano particle size tungsten trioxide, experts said that it will attract more attention than before.
