Cesium tungsten oxide is also known as cesium tungsten bronze with the formula of CsxWO3. Because of its excellent near-infrared absorbing ability, it is often used to produce a new type of environmentally-friendly transparent near infrared light shielding film to reduce building energy consumption.
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According to the experts, about 52% of the sunlight that hits the ground is infrared light - the main cause of indoor temperature rise. However, people often adopt large-scale glass windows, floor-to-ceiling windows, or glass curtain walls in their room design for the needs of lighting, while causing more solar heat radiation to pass through the glass into the room than brick walls. In order to meet the environmental protection trend of energy saving and emission reduction, researchers have developed a CsxWO3 near infrared light shielding film that has a high visible light transmittance to keep the room bright, and shields near-infrared light to suppresses the indoor temperature rising. Therefore, in recent years, this kind of transparent heat insulation film of CsxWO3 nanoparticles has been more and more widely used in architectural glass to achieve energy saving purposes.
