F-doped Cesium Tungsten Bronze Applied for Smart Glass

F-doped cesium tungsten bronze applied for smart glass picture

F-doped cesium tungsten bronze may be applied for preparing smart glass as it has good visible light transmittance and near-infrared shielding properties. And it is reported that F doping cesium tungsten bronze has higher visible light transmittance and better near-infrared shielding performance than undoped cesium tungsten bronze. This is because the fluorine atom replaces the oxygen atom, increases the band gap and generates carriers.

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F-doped Cesium Tungsten Bronze Applied for Electrochromic Smart Window

F-doped cesium tungsten bronze applied for electrochromic smart window picture

F-doped cesium tungsten bronze may be used for preparing electrochromic smart window with excellent near-infrared shielding properties, and therefore such smart window may be applied in energy saving reconstruction of building. While do you know how to prepare F doping CsxWO3 with better near-infrared shielding performance? It requires a discussion of the effect of precursor mixing order on F-doping cesium tungsten bronze.

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F-doped Cesium Tungsten Bronze Applied for Smart Window

F-doped cesium tungsten bronze applied for smart window picture

F-doped cesium tungsten bronze for manufacturing smart window can be prepared by low-temperature hydrothermal method. For example, some experts have prepared F-doping cesium tungsten bronze with good near-infrared shielding properties by hydrothermal synthesis method, using cesium carbonate (Cs2CO3), tungstic acid (mWO3•nH2O) as raw materials, sodium fluoride (NaF) or hydrofluoric acid (HF) as fluorine source, and citric acid as inducer.

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F-doped Cesium Tungsten Bronze Applied for Window Heat Insulation Film

F-doped cesium tungsten bronze applied for window heat insulation film picture

F-doped cesium tungsten bronze may be applied for preparing window heat insulation film. According to experts, the key to improve the near-infrared shielding performance of F-doping cesium tungsten bronze is to select a suitable heat treatment time and temperature. But what effect does heat treatment have on F doped cesium tungsten bronze?

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F-doped Cesium Tungsten Bronze Applied for Thermal Insulating Glass

F-doped cesium tungsten bronze applied for thermal insulating glass picture

F-doped cesium tungsten bronze for producing thermal insulating glass has excellent near-infrared shielding properties. In this regard, experts say that this is a special tunnel structure inside the F doping cesium tungsten bronze and its special carrier transport properties give it optical properties. More specifically, by adjusting the carrier concentration, the F doping cesium tungsten bronze can absorb light of different wavelength bands.

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F-doped Cesium Tungsten Bronze Applied for Heat Insulation Coating

F-doped cesium tungsten bronze applied for heat insulation coating picture

F-doped cesium tungsten bronze has better near-infrared shielding properties than cesium tungsten bronze so that it may also be used to produce heat insulation coating, which may be applied to building or automotive glass to play the role of heat insulation and energy conservation. Wherein, experts said that the rod-shaped F-doped CsxWO3 has better near-infrared properties, and HF is likely to promote the formation of F doping cesium tungsten bronze nanorods.

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F-doped Cesium Tungsten Bronze Applied for Near-infrared Shielding Material

F-doped cesium tungsten bronze applied for near-infrared shielding material picture

F-doped cesium tungsten bronze has excellent near-infrared shielding properties so that it may be used to produce near-infrared shielding material such as thermal insulation film, thermal insulation dispersion and thermal insulation coating. In this regard, experts say that surface plasmon resonance is considered to be one of the sources of near-infrared shielding properties of cesium tungsten bronze.

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F-doped Cesium Tungsten Bronze Applied for Thermal Insulation Paper

F-doped cesium tungsten bronze applied for thermal insulation paper image

F-doped cesium tungsten bronze may be applied for manufacturing a thermal insulation paper, that is, a transparent heat insulating film. But do you know what the change in morphology of F doping cesium tungsten bronze crystals with the increase of HF added is? We can analyze from the following figure - SEM images of F-doped cesium tungsten bronze with different HF addition amount. Wherein, (a), (b), (c), and (d) are undoped CsxWO3, CsxWO3 sample of F=0.11, CsxWO3 sample of F=0.45, and CsxWO3 sample of F=0.79, respectively.

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F-doped Cesium Tungsten Bronze Applied for Thermal Insulation Film

F-doped cesium tungsten bronze applied for thermal insulation film picture

F-doped cesium tungsten bronze may be used to prepare an environmentally-friendly transparent thermal insulation film, which is also a transparent conductive film. In this regard, experts say that the square resistance can not only indirectly characterize the thickness of the conductive film, but also characterize the permeability of the infrared spectrum. And it is generally considered that in a transparent conductive film, the lower the square resistance, the better the shielding property against infrared rays. Conversely, the higher the square resistance, the worse the shielding property to infrared light.

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F-doped Cesium Tungsten Bronze Applied for Ceramic Microsphere

F-doped cesium tungsten bronze applied for ceramic microsphere image

F-doped cesium tungsten bronze may be applied for preparing ceramic microsphere, and then be used to produce thermal insulation film with high transparency. Experts observed fluorine-doped cesium tungsten bronze (CsxWO3-yFy) and undoped cesium tungsten bronze (CsxWO3) by transmission electron microscopy (TEM) to study their microstructure. The figure below is TEM images of F-doped cesium tungsten bronze with different HF addition amount. Wherein, (a), (b), (c), and (d) are undoped CsxWO3, CsxWO3 sample of F=0.11, CsxWO3 sample of F=0.45, and CsxWO3 sample of F=0.79, respectively.

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