Electrochromic material is a very important material for the assembly of an all-solid-state electrochromic device. There are inorganic electrochromic materials (represented by WO3) and organic electrochromic materials (represented by polyaniline and viologen). Well, do you know how to choose the best electrochromic material? Some experts have proposed an electrochromic device for high-throughput screening of solid inorganic electrochromic materials, which solves the problem that the optimal electrochromic material cannot be accurately screened.
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According to the experts, the electrochromic device includes a substrate, a lower transparent conductive layer, and a plurality of electrochromic device units thereon; the plurality of units are divided into at least two groups, and each unit from the inside to the outside is a cathode electrochromic layer, a solid electrolyte layer, an anode electrochromic layer, and an upper transparent conductive layer; at least one dingal layer of the cathode electrochromic layer, the solid electrolyte layer, and the anode electrochromic layer forms a thickness-graded layer; when the material of the dingal layer is one, the thickness of the same dingal layer in different groups of units is different and forms a thickness gradient layer; when the material of the dingal layer is two or more, the thickness ratio of the same dingal layer in different groups of units is different and a compound thickness gradient layer is formed. And using this electrochromic device for high-throughput technology can accurately screen out the optimal electrochromic material. So, may the device screen out WO3?
