Nano Cs0.33WO3, cesium tungsten bronze nanoparticles, may be applied for producing near-infrared shielding material, such as, heat-insulating film, and therefore be used in building glass. According to experts, the nano particle size cesium tungsten bronze raw material is a nano material that has many special properties, such as, surface and interface effects, quantum size effects, small size effects, macroscopic quantum tunneling effects, and the like. The reason why nano cesium tungsten bronze has these properties is that it has special structure.
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Experts said that when the particle size of the cesium tungsten bronze material is reduced to the nanometer level, the inside of the particle is an intact crystal whose atoms are periodically arranged. And the surface of the particle is an amorphous layer, which is disorderly arranged. It is this structure that makes the cesium tungsten bronze nano powder have the above properties, and thus has the ding of shielding near-infrared rays.
