Nanometer cesium tungsten bronze is a kind of transparent heat-insulating nanomaterial, which is environmentally friendly and energy-saving, so that it may be applied for heat insulating window glass. And such transparent thermal insulation material has a very broad application prospect.
At present, inorganic materials with strong near-infrared absorption or reflection properties have been mainly concentrated on conductive oxides such as antimony tin oxide (ATO), indium tin oxide (ITO), and zinc aluminum oxide, etc. Such conductive oxide films generally block near-infrared light in a wavelength greater than 1500nm. While the near-infrared shielding performance of the cesium tungsten bronze powder has been discovered in recent years. It is found that the cesium tungsten bronze can shield near-infrared light at a wavelength of more than 1100nm, which means that cesium tungsten bronze has more excellent near-infrared shielding performance than conductive oxides. What should be noted is that the current preparation method of cesium tungsten bronze powder has the problems of complicated process and high cost.
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