Cesium Tungstate Applied for Transparent Heat-insulation Coating

Cesium tungstate, such as Cs0.33WO3 nanopowder, is a kind of semiconductor material that can be used for preparing transparent heat-insulation coating. And the prepared coating is more and more widely applied in buildings and automobiles to achieve the purpose of heat shielding, energy reduction and environmental protection. According to the experts, the thermal insulation coating film formed by such a functional coating of Cs0.33WO3 on architectural glass is the result of the combined effect of absorption and reflection.

cesium tungstate applied for transparent heat-insulation coating image

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cesium tungstate applied for transparent heat-insulation coating picture

In this regard, the experts explained that when sunlight hits the surface of the film, part of the thermal radiation will be absorbed by the carrier, while the other part will be reflected by the plasma because the incident light frequency of this part of the thermal radiation is lower than the natural frequency of surface plasmon resonance. In other words, the absorption and reflection of Cs0.33WO3 on solar thermal radiation is due to the presence of free carriers and plasmons.

 

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