Yellow Tungsten Oxide Nano Film Applied for Electrochromic Device

Yellow tungsten oxide nano film is also known as tungsten trioxide nano film, which can be used as an electrochromic layer to assemble an electrochromic device. Tungsten trioxide electrochromic film is a layer of color change reaction. And it exhibits reversible change in color and transparency in appearance properties. Generally, the single-layer tungsten oxide film is assembled into a device together with other layers of films. So do you know how to assemble a solid-state electrochromic device?

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The process of assembling a solid state electrochromic device is as follows: A gel polymer electrolyte is coating onto a prepared ITO glass coated with WO3 film by spin coating or casting. The two glasses are butted, and then the electrochromic layer and the ion storage layer are bonded together by the viscosity of the gel polymer and then completely encapsulated. What should be noted is that the packaging of a device is not easy so that glass curtain walls with electrochromic performance have not gone into mass production.

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