Electrochromism has long been known. And most experts are familiar with nano tungsten oxide film – an electrochromic thin film. According to experts, large-area electrochromic devices, such as glass curtain walls, can be obtained by spraying. Spraying, which is widely used with highly efficient production rate, can be used to produce large area electrochromic devices.
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Experts also mentioned that the spraying method is to heat in situ on the hot stage during spraying to eliminate oxygen vacancies in the electrochromic material. The ultrathin tungsten oxide nano film produced by spray coating provides a more promising platform in the fields of electrochromic windows, batteries and other devices compared with the ultrathin tungsten oxide nano film produced by the drop coating method. Besides, as you may have known, energy saving and environmental protection is achieving more and more attention as global warming intensifies. And it is important for us to decrease energy consumption. So, there is no doubt that energy saving film such as tungsten trioxide heat insulating film will be popular in the future.
