Cs Doped Tungsten Oxide Nanoparticles Applied for Thermal Insulating Glass

Cs doped tungsten oxide nanoparticles, or cesium-doped tungsten bronze nanoparticles, or CsxWO3 nanoparticles, are significant for obtaining thermal insulating glass. You know, CsxWO3 is an ideal near infrared shielding material for thermal insulating glass. While the CsxWO3 nanoparticle dispersed resin film exhibits obvious photochromic behavior under ultraviolet illumination, which severely hinders the commercial application of CsxWO3.

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Therefore, some experts have prepared CsxWO3-SiO2 composite resin coatings with excellent near infrared shielding ability and outstanding optical stability under strong ultraviolet illumination by combining an ultraviolet-absorbing agent with SiO2. The roles of ultraviolet-absorbing agent and SiO2 in preventing the photochromic behavior of the CsxWO3-SiO2 composite resin coating were vital, reducing the photochromic reaction rate by ultraviolet-absorbing agent and limiting the photochromic reaction areas by SiO2. In a word, the CsxWO3-SiO2 coating provides a new solution for eliminating the photochromism of a CsxWO3-based film and it may have practical application in architecture and automobiles.

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