It has been reported that cesium tungsten oxide for producing heat insulation window glass has a superior performance over commercial ITO glass in both UV and short wavelength region of IR light. Wherein, cesium tungsten oxide can be Cs0.33WO3 nano particles.
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According to the experts, it was confirmed that the IR shielding property of the thin film synthesized by the squeegee method using slurry of fine particles was caused by the absorption of the Cs0.33WO3 particles. While the shielding properties of ITO glasses were caused by the reflectance, which strongly related to their high density structures by the physical sputtering method. It indicates that the Cs0.33WO3 nanoparticles, that is, the mixed valence state tungsten based materials, show premier properties even than those of ITO, implying their potential applications as smart windows. And there is no doubt that cesium tungsten oxide is more and more widely applied to produce heat insulation window glass.
