Cesium tungsten oxide for producing transparent thermal insulating film can be Cs0.33WO3 nano particles – a new type of heat shielding material with high transparency. There are other commercial heat shielding materials such as ATO and ITO. Well, do you know the difference of these heat shielding materials, including cesium tungsten oxide (CTO), ATO and ITO?
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According to the experts, Cs0.33WO3 nanopowder shields heat by absorbing near infrared light. While the ITO glass shields heat by reflectance. More specifically, cesium tungsten oxide diminishes near-infrared rays of shorter wavelength, which generate most of solar heat in sunlight. So it blocks much more heat energy than ATO and ITO does. What should be noted is that the price of cesium tungsten oxide is higher than ATO, but much lower than ITO. Due to its environmental protection, Cs0.33WO3 is becoming more and more popular, for applying to sunrooms, glass curtain walls, office buildings and so on.
