Cesium tungstate with the formula of Cs0.33WO3 is a high-performance heat shielding material for preparing transparent coating glass. It is reported that the optical properties of Cs0.33WO3 were analyzed based on experimental results. And its potential for use as a transparent energy-saving material was evaluated using theoretical optical results.
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According to the experts, Cs0.33WO3 exhibits excellent near-infrared radiation reflectance/absorption and high transmissivity of visible light, so it is ideal for use as a heat insulation material for windows. In addition, Cs0.33WO3 provides perfect solar radiation shielding, suggesting that this material could be applied for compacted filters and nanoparticle-dispersed coatings. Two types of Cs0.33WO3 materials exhibited more than 80% transmissivity of visible light and excellent solar radiation shielding performance. Also, the experts introduced that the doping of the Cs ion into hex-WO3 induces a persistent n-type electronic conductivity with metal-like characteristics and dramatically enhances near-infrared radiation absorption while maintaining excellent visible light transparency.
