Cesium tungsten bronze nanopowder is widely applied for producing French window thermal insulating film, which is regarded as the best dingal material for shielding heat radiation and ultraviolet radiation without polluting the environment. Such smart film can be fabricated by an environmental friendly green processes. And the transparent film will not do harm to people as it does not contain toxic substances.
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According to the experts, the reason why French window thermal insulating film can shield heat and UV is that cesium tungsten bronze nanopowder has the narrow band gap. That is to say, the narrow band gap of cesium tungsten bronze makes such film exhibit excellent NIR shielding ability and ultraviolet light absorption and high visible light transparency capability. Also, it can protect you from light pollution as it is anti-glare. So, if you have several French windows in your home without any heat insulation treatment, you can choose such a heat insulation film to ensure visible light while exerting the ding of heat insulation and heat preservation.
