Cs doped tungsten oxide nanoparticles, or CsxWO3 nanoparticles, are often used to prepare near infrared shielding material such as heat insulating film and heat insulating coating. And the prepared transparent near-infrared shielding materials are mostly used for heat insulation of buildings and vehicles. The reason why these materials can play a role in thermal insulation is that CsxWO3 nanoparticles have excellent near-infrared absorption properties. But how to test the light absorption properties of Cs doped tungsten oxide nanoparticles and CsxWO3 films?
More details, please visit:
http://cesium-tungsten-bronze.com/index.html
The CsxWO3 powder was pressed on a BaCl2 sheet, and the near-infrared absorption performance was characterized by testing its diffuse reflection absorption spectrum. The near-infrared shielding performance of the CsxWO3 film was characterized by testing its transmission spectrum on a film-coated glass slide. The CsxWO3 powder pressed on the BaCl2 sheet and the glass-coated glass slide were irradiated with UV light (wavelength 254nm, power 30W) for 10min and 30min, respectively, and the light absorption properties of the samples were tested to characterize the powder and film of photochromic properties and ultraviolet light on the near-infrared shielding properties of samples.
