Electrochemical doping method for electrochromic thin film

An electrochromic and electrochemical technology, which is applied in the direction of electrolytic inorganic material coating, device for coating liquid on the surface, ion implantation plating, etc. Preparation of thin films and other issues to achieve the effect of reducing doping costs, simplifying the experimental process, and ensuring uniformity

Inactive Publication Date: 2017-09-08
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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Problems solved by technology

The disadvantage of the above-mentioned preparation method is: the thin film doped by wet chemical method is generally used, and the composite solution is mainly prepared by sol-gel, and then the film is prepared. In the process of preparing the solution, the solution will produce precipitation with the increase of the doping ratio. Once the precipitation is generated, it is difficult to prepare a uniform film; or the sputtering method is used to dope the electrochromic film. This method i

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  • Electrochemical doping method for electrochromic thin film
  • Electrochemical doping method for electrochromic thin film
  • Electrochemical doping method for electrochromic thin film

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[0017] The present invention will be described in further detail below. See figure 1 , An electrochemical doping method for electrochromic thin films, characterized in that the steps of electrochemical doping are as follows:

[0018] 1. Preparation of electrochromic film: the electrochromic film is prepared on the transparent conductive substrate by magnetron sputtering method, spin coating method, electrodeposition method, spray method or pulling method. The electrochromic film material includes tungsten oxide, Molybdenum oxide, niobium oxide, nickel oxide, vanadium pentoxide, iridium oxide, cobalt oxide, nickel tungsten oxide, cerium oxide, tantalum oxide, Prussian blue, polyaniline, polypyrrole, polythiophene, polybenzazole, polyfuran or poly One or a mixture of carbazoles; the prepared electrochromic film is attached to the transparent conductive substrate;

[0019] 2. Preparation of dopant solution: Dissolve one or more soluble salts containing H, Li, Na, K, Mg, Al, Zn, Fe, M...

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Abstract

The invention belongs to the electrochromic thin film preparation technologies, and relates to an electrochemical doping method for an electrochromic thin film. The steps for electrochemical doping comprise preparation of the electrochromic thin film, preparation of doped liquid, preparation before doping and process of doping. According to the electrochemical doping method for the electrochromic thin film, high-proportion doping is achieved; deposit cannot be generated in the doping process so that the uniformity of the doped thin film can be ensured; and when multi-component doping is conducted, the experimental process is simplified, expensive experimental equipment is omitted, and therefore the doping cost is reduced.

Description

technical field [0001] The invention belongs to the preparation technology of electrochromic thin films, and relates to an electrochemical doping method of electrochromic thin films. Background technique [0002] Electrochromic (EC) materials are characterized in that their optical properties change reversibly and persistently under the drive of external voltage. This function enables electrochromic materials to be applied in many fields. Its main application has changed over the years, from displays to smart windows, and research in the field of devices has promoted the development of electrochromic technology. [0003] Electrochromic materials generally exist in the form of thin films in devices, and the discoloration process is accompanied by redox reactions, which involve a large amount of lithium ion intercalation and extraction, which will have a serious impact on the structure of the material and reduce the discoloration properties of the material, resulting in The ...

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Application Information

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IPC IPC(8): C25D9/04C23C14/58C23C18/12B05D3/14
CPCC25D9/04B05D3/14C23C14/5846C23C18/1295
Inventor 韦友秀颜悦厉蕾陈牧刘伟明
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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