Nano Cesium Doped Tungsten Oxide Applied for Transparent Thermal Insulation Nanopowder

Nano cesium doped tungsten oxide may be applied for preparing transparent thermal insulation nanopowder. And the powder structure and near-infrared absorption characterization are of great reference value for knowing about its near-infrared shielding performance.

Therefore, experts used XRD spectrometer to do X-ray diffraction analysis, and adopted scanning electron microscopy to characterize the morphology of cesium doped tungsten oxide powder. The specific surface area and pore size analyzer were also used to characterize the specific surface area of cesium doped tungsten oxide powder. And UV-visible spectrometry was used to characterize the light absorption properties of the film at 300-1100nm. Specifically, they tested by the following method:

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Cesium doped tungsten oxide powder was pressed onto a BaCl2 sheet in the background of BaCl2, and the light absorption properties of the Cs doped tungsten oxide powder were characterized by measuring the absorbance thereof. The film coated slides were irradiated for 0, 30min under UV light (275nm, 30W), and the transmittance of the thin film of Cs doped tungsten oxide was tested to characterize the near-infrared shielding properties before and after ultraviolet light.

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