Cesium Tungsten Bronze Applied for Smart Film

Cesium tungsten bronze such as Cs0.33WO3 nano particles may be used to prepare a smart film to effectively shield near-infrared heat radiation and adjust the visible light transmittance. It has been reported that this new type of smart film has a wide range of applications in the field of building energy saving because it can selectively regulate (shield) the energy of sunlight.

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According to the experts, the smart film of cesium tungsten bronze nano particles shield the near-infrared light by the plasmon resonance absorption effect of cesium tungsten bronze nano particles. Studies have shown that the thermal insulation film of Cs0.33WO3 nano particles can shield more than 80% of near-infrared light, and pass through more than 70% of visible light, which solves the problem that the existing heat insulation film can only selectively regulate (shield) visible light or near-infrared light. And it is believed that such a Cs0.33WO3 film will be more and more popular.

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