Tungsten Trioxide Applied for Exhibition Hall Thermal Insulating Film

Tungsten trioxide for exhibition hall thermal insulating film is WO3 doping with an element. That is MxWO3, which further enhances the optical absorption of tungsten trioxide powder in the solar spectrum. MxWO3, such as CsxWO3, has attracted considerable attention because it offers a wide variety of crystal structures and has many interesting attributes such as electrochromic, optical-electrical, and superconductive properties.

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According to the experts, the photothermal conversion property of Cs0.33WO3 exhibited strong characteristic absorption in the near-infrared (NIR) region because of free electrons or polarons. By reducing the particle size or by increasing the particle concentration, the NIR absorption of Cs0.33WO3 was considerably enhanced, the experts added. In addition, the experts introduced that the Cs0.33WO3 generated a photothermal conversion efficiency of approximately 73% while demonstrating excellent photothermal stability. It is proved that the Cs0.33WO3 has an effective NIR absorption and photothermal conversion ability, which revealed great potential for practical applications, such as the preparation of exhibition hall thermal insulating film. And in this process, tungsten trioxide plays an important role.

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