Cs0.32WO3 Applied for Transparent Thermal Insulating Glass Coating

Cs0.32WO3 is an excellent near-infrared shielding material for producing transparent thermal insulating glass coating, which is more and more widely applied to buildings or automobiles. Well, do you know what is Cs0.32WO3?

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Cs0.32WO3 is also known as cesium-doped tungsten bronze (cesium tungsten bronze) --- a type of alkali-doped tungsten bronzes. According to the experts, nanoparticles of alkali-doped tungsten bronzes exhibit slight chromatic instabilities typically upon applications of strong ultraviolet light, which acts detrimentally to long-life commercial applications. Origin of the chromatic instabilities in cesium tungsten bronze has been investigated, and it has been found that the coloration and bleaching processes comprised electronic exchanges which accelerate or depress the polaron excitation and the localized surface plasmon resonance. Coloration on UV illumination is evidenced by electron diffraction as due to the formation of HxWO3, which is considered to take place in the surface Cs-deficient WO3 region via the double charge injection mechanism.

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