Cesium Tungsten Bronze Applied for Thermal Insulation Window Film

Cesium tungsten bronze for preparing thermal insulation window film is a tungsten bronze in which electronic charge carriers are introduced by interstitial doping.

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According to the experts, the localized surface plasmon resonance phenomena have recently been investigated in unconventional plasmonic materials such as metal oxide doped with high concentrations of free carriers. The experts synthesized three distinct shapes of colloidal nanocrystals of CsxWO3, including hexagonal prisms, truncated cubes and pseudospheres, which exhibit strongly shape-dependent absorption features in the near-infrared region by using varying ratios of oleylamine to oleic acid. And they rationalize these differences by noting that lower symmetry shapes correlate with sharper plasmon resonance features and more distinct resonance peaks. The plasmon peak positions also shift systematically with size and with the dielectric constant of the surrounding media, reminiscent of typical properties of plasmonic metal nanoparticles.

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