Nano Cesium-doped Tungsten Oxide Applied for Near Infrared Shielding Material

Nano cesium-doped tungsten oxide, or nano cesium tungsten bronze, may be applied for a transparent near infrared shielding material, which may be applied to architectural glass to achieve the function of cooling and heat insulation, and at the same time, reduce the usage rate of cooling appliances such as air conditioners and fans, and thus save electricity costs.

As we all know, with the rapid development of society, it has become a concern of all mankind that we should save energy and reduce pollutant emissions. According to the report of 2010 International Environment Program, buildings consume one-third of global energy. In order to pursue an open vision, urban buildings are becoming increasingly “vitrification”. The original high-rise buildings of steel and cement are covered by large-scale glass. Although the exterior of the building becomes beautiful and the horizon is wide, it is followed by a large amount of energy waste.

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And as the most important component of the building, the glass window is the main part of energy communication between indoor and outdoor. Therefore, by adopting heat-insulating means, the energy exchange between indoor and outdoor can be reduced, the air conditioner usage rate can be reduced, and the carbon dioxide can be reduced while saving energy, so as to achieve the effect of energy conservation and emission reduction. In recent years, experts have found that cesium tungsten bronze has excellent near-infrared shielding effect. And it is resistant to ultraviolet rays. Also, it can maintain high visible light transmittance. Therefore, cesium tungsten bronze nano functional materials are gradually becoming a new material for environmental protection and heat insulation and entering people's vision.

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