Tungsten oxide nanoparticles are a multidingal semiconductor dingal material with photochromic property, which can be used to prepare a new type of environmentally-friendly heat-insulation glass coating for energy saving reconstruction of building. Certainly, nano particle size tungsten trioxide also has many other characteristics such as catalysis, invisibility characteristics, electrochromism, gaschromism, gas sensitivity, superconductivity and the like.
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In fact, so far, there have been many studies on the electrical properties, gas sensing properties and photocatalytic properties of WO3 nanoparticles. However, the optical properties of tungsten trioxide nano particles and their composite semiconductor nano particles have rarely been reported. In recent years, experts have found that nano grain size tungsten trioxide has a high heat-insulating ding, that is, an anti-infrared ding, and more specifically, an infrared absorbing ding. And therefore, the tungsten trioxide heat insulation coating is more and more widely applied in building glasses such as glass windows, glass doors, glass curtain walls, glass dome, glass French windows, and so on.
