
Nano tungsten trioxide is not only an important n-type semiconductor material, but a kind of transparent thermal insulation nanopowder. And it is also one of the few oxide semiconductors that are easy to realize the quantum size effect. Tungsten trioxide can also absorb electromagnetic waves, and has photocatalysis property and other properties so that it is widely used in fuel cells, chemical sensors, optoelectronic devices and other fields. The application of tungsten trioxide in the field of transparent heat insulation…