Yellow tungsten oxide, WO3, can be used to prepare heat insulating window film with the advantages of high heat insulation and high UV shielding performance, thus reducing air conditioning costs in summer, saving energy for environmental protection, and reducing glare. In addition, the new green energy-saving film can also protect your privacy. All these are due to the fact that WO3 is an electrochromic material that can achieve the purpose of heat insulation and cooling.
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So how to apply tungsten trioxide heat insulation film to architectural glass? Experts say that spray technology is a very simple and efficient film-forming technology that can be used to prepare large-area commercial tungsten trioxide electrochromic films. Some experts also said that they first reduced the size of WO3 to about 20nm by doping technology, and uniformly dispersed it in deionized water to obtain stable nano-ink, then used spray technology to form a film, and then used in-situ heating to eliminate oxygen vacancy defects caused by doping, thereby increasing the light modulation range of the electrochromic electrode.
