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Electrochromic film and preparation method and equipment thereof

An electrochromic and thin-film technology, applied in nonlinear optics, instruments, optics, etc., can solve the problems of slow color conversion, cracking and shedding of thin film layers, achieve good matching and durability, reduce pollution time, reduce The effect of production costs

Inactive Publication Date: 2021-12-10
CHANGZHOU SANYOU DISSAN PROTECTIVE MATERIAL MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, electrochromic materials have the following main problems: uneven coloring leads to local coloring near the electrode, and even irreversible degradation of the material; the color is relatively single and the optical performance is poor; because ions need to diffuse through the lattice, so The color conversion is slow; the implantation and extraction of ions will respectively lead to changes in the state of tensile stress or compressive stress of the film layer, resulting in cracking or shedding of the film layer

Method used

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  • Electrochromic film and preparation method and equipment thereof
  • Electrochromic film and preparation method and equipment thereof
  • Electrochromic film and preparation method and equipment thereof

Examples

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preparation example Construction

[0024] Please refer to figure 1 , a method for preparing an electrochromic thin film provided in an embodiment of the present invention, which includes the following steps:

[0025] S1, select the substrate, and prepare amorphous WO on the substrate by magnetron sputtering method 3 Thin film and nanocrystalline NiO x film. It should be noted that, optionally, there are two substrates, both of which are ITO transparent conductive films.

[0026] S2. Put EDOT-C 6 f 13 -LiClO 4 Predispersed in a solvent to obtain a predispersed solution. It should be noted that, further specifically, wherein, EDOT refers to 3,4-ethylenedioxythiophene; the solvent is methanol, xylene, acetonitrile, toluene, ethyl acetate, acetone, butanone and methyl isobutyl ketone One or several mixtures in any proportion. In addition, in order to ensure the good dispersion effect and solute performance of the pre-dispersion solution, in the embodiment of the present invention, when performing pre-disper...

Embodiment 1

[0037] This embodiment provides a method for preparing an electrochromic thin film, which includes the following steps:

[0038] S1. Select ITO transparent conductive film as the substrate, and prepare amorphous WO on the substrate by magnetron sputtering method. 3 Thin film and nanocrystalline NiO x film.

[0039] S2. Put EDOT-C 6 f 13 -LiClO 4 Predispersed in a solvent to obtain a predispersed solution. Among them, the solvent is methanol; EDOT-C 6 f 13 -LiClO 4 The mass ratio of solvent and solvent is 92:8.

[0040] S3. After filtering the pre-dispersed solution, apply it to WO by slit coating method 3 film, after one thermal curing with NiO x The film is compounded, and then the electrochromic film is obtained after secondary thermal curing. It should be noted that after filtering the pre-dispersed solution, it is coated on WO by slit coating method. 3 film, the WO 3 The first electrolyte layer is formed on the film; with NiO x Thin films are composited on NiO...

Embodiment 2

[0044] This embodiment provides a method for preparing an electrochromic thin film, which includes the following steps: S1. Select an ITO transparent conductive film as a substrate, and prepare amorphous WO on the substrate by magnetron sputtering. 3 Thin film and nanocrystalline NiO x film.

[0045] S2. Put EDOT-C 6 f 13 -LiClO 4 Predispersed in a solvent to obtain a predispersed solution. Among them, the solvent is xylene and acetonitrile; EDOT-C 6 f 13 -LiClO 4 The mass ratio of solvent and solvent is 92:8.

[0046] S3. After filtering the pre-dispersed solution, apply it to WO by slit coating method 3 film, after one thermal curing with NiO x The film is compounded, and then the electrochromic film is obtained after secondary thermal curing. It should be noted that after filtering the pre-dispersed solution, it is coated on WO by slit coating method. 3 film, the WO 3 The first electrolyte layer is formed on the film; with NiO x Thin films are composited on NiO ...

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Abstract

The invention discloses an electrochromic film and a preparation method and equipment thereof, and mainly relates to the field of functional materials. The counter electrode layer prepared by the preparation method of the electrochromic film provided by the invention has stable reversible oxidation-reduction reaction, is compatible with the performance of an electrochromic layer and is high in response speed, the quantities of electric charges injected into two electrodes are similar, and each layer of material has better matching property and durability; the prepared electrochromic film has good electrochromic performance; according to the thin film preparation equipment, a precise coating method is adopted for coating, the coating thickness of an electrolyte layer can be precisely controlled, coating is more uniform and stable, and the product quality is improved; after the WO3 thin film is coated with the electrolyte layer, the WO3 thin film can be compounded with the NiOx thin film to directly obtain the electrochromic film, so the pollution time of the electrolyte layer is shortened, the product quality is improved, and the production cost is reduced. Therefore, the electrochromic film and the preparation method and equipment thereof provided by the invention have important industrial popularization and application values.

Description

technical field [0001] The invention relates to the field of functional materials, in particular to an electrochromic thin film and its preparation method and equipment. Background technique [0002] Electrochromic materials have broad application prospects in building windows and vehicle glass due to their ability to control light energy, continuous adjustability to transmitted light intensity, ability to eliminate glare in vehicle rearview mirrors, and open-circuit memory functions. [0003] In the existing technology, electrochromic materials have the following main problems: uneven coloring leads to local coloring near the electrode, and even irreversible degradation of the material; the color is relatively single and the optical performance is poor; because ions need to diffuse through the lattice, so The color conversion is slow; the implantation and extraction of ions will respectively lead to changes in the state of tensile stress or compressive stress of the film la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1524G02F1/155
CPCG02F1/1524G02F1/155
Inventor 赵强国郝李伟丁锋王晨鑫王亚飞贲晓燕王兰芳
Owner CHANGZHOU SANYOU DISSAN PROTECTIVE MATERIAL MFG
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