Nanometer yellow tungsten oxide is not only a kind of infrared ultraviolet shielding material, but also an electrochromic material. The thin film made using yellow tungsten oxide nanopowder as raw material has excellent heat insulation effect so that it can be used in the form of heat-insulating film in buildings or automobiles no matter what is it --- a thermal insulating material or an electrochromic material. It can make the inside space where using such film "warm in winter and cool in summer".
The electrochromic glass (smart glass), that is, glass made of nano grain size yellow tungsten oxide, has an adjustable performance to light absorption and transmission under an electric field. It can selectively absorb or reflect external heat radiation and internal heat diffusion. It reduces the amount of energy that must be consumed in office buildings and residential homes, and keeps it cool during the summer, warm during the winter. At the same time, it can also improve the natural lighting. What is more, it can protect your privacy.
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