Nano grain size tungsten trioxide is a kind inorganic transparent thermal insulation material, which will become one of the main development directions of transparent thermal insulation film in the future. And at that time, a lot of glass windows will be coated with such thermal insulation films.
In addition, it should be noted that tungsten trioxide has various discoloration properties, namely electrochromic property, photochromic property and gasochromic property. The discoloration properties of tungsten trioxide itself have made it own broad application prospects. However, there are still some problems that needed to be solved. The main direction at this stage and for some time in the future is --- “how to shorten the response time of discoloration”, “how to improve the stability of materials”, and “how to improve the discoloration activity of materials”. In particular, to shorten the response time. It can be considered from the perspective of accelerating the diffusion of substances.
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