Method for preparing organic composite inorganic electrochromic films

An electrochromic film, inorganic technology, applied in the field of electrochromic film preparation, can solve the problems of unfavorable composite electrochromic film application, affecting the performance of use, and the combination is not uniform enough, and achieves uniform distribution of organic matter and short response time. , combined with a uniform effect

Active Publication Date: 2012-05-02
靖江市浩鑫电气机械配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The light absorption change of inorganic electrochromic materials is caused by the double injection / extraction of ions and electrons. Its performance is superior and stable, but the color is relatively single and the response time is long.
The organic composite inorganic electrochromic film can not only retain the characteristics of stable performance and long life of the inorganic electrochromic film, but also apply the compound of organic matter to improve its shortcoming of single color and short response time
Currently prepared composite electrochromic film materials, the combination of organic and inorganic substances is not uniform enough, which affects its performance and is not conducive to the application of composite electrochromic films

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing an organic composite inorganic electrochromic film, comprising the following steps:

[0024] The first step is to dissolve ethyl orthosilicate in a part of absolute ethanol to form solution A, and then dissolve ammonia water with a mass concentration of 25% twice the volume of orthosilicate in b part of absolute ethanol Configure solution B, a:b=1:1, then place solution A in a magnetic stirring device, add solution B to solution A under constant stirring, and the concentration of ethyl orthosilicate in the mixed solution is 0.2mol / L, after 20 hours of reaction, the precipitate was separated, washed by centrifugation and dried at 50°C to obtain SiO 2 Nano or submicron spheres;

[0025] In the second step, the prepared particle size ratio is large balls: small balls = 8:1 two kinds of SiO 2 Spherical particles were weighed according to the mass ratio of large ball: small ball = 10:1, and the two kinds of SiO 2 Spherical particles are ultrasonica...

Embodiment 2

[0031] A method for preparing an organic composite inorganic electrochromic film, comprising the following steps:

[0032] The first step is to dissolve ethyl orthosilicate in a part of absolute ethanol to form solution A, and then dissolve 0.8 times the volume of orthosilicate in ammonia water with a mass concentration of 28% in b part of absolute ethanol Configure solution B, a:b=1:2, then place solution A in a magnetic stirring device, add solution B to solution A under constant stirring, and the concentration of ethyl orthosilicate in the mixed solution is 0.4mol / L, after 20 hours of reaction, the precipitate was separated, washed by centrifugation and dried at 60°C to obtain SiO 2 Nano or submicron spheres;

[0033] In the second step, the prepared particle size ratio is large balls: small balls = 5:1 two kinds of SiO 2 Spherical particles were weighed according to the mass ratio of large ball: small ball = 5: 1, and the two kinds of SiO 2 Spherical particles were ult...

Embodiment 3

[0039] A method for preparing an organic composite inorganic electrochromic film, comprising the following steps:

[0040] The first step is to dissolve ethyl orthosilicate in a part of absolute ethanol to form solution A, and then dissolve 5 times the volume of tetraethyl orthosilicate in ammonia water with a mass concentration of 25% in b part of absolute ethanol Configure solution B, a:b=1:1, then place solution A in a magnetic stirring device, add solution B to solution A under constant stirring, and the concentration of ethyl orthosilicate in the mixed solution is 0.6mol / L, after 20 hours of reaction, the precipitate was separated, washed by centrifugation and dried at 55°C to obtain SiO 2 Nano or submicron spheres;

[0041] In the second step, the prepared particle size ratio is large balls: small balls = 5:1 two kinds of SiO 2 Spherical particles were weighed according to the mass ratio of large ball: small ball = 10:1, and the two kinds of SiO 2 Spherical particles...

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PUM

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Abstract

The invention discloses a method for preparing organic composite inorganic electrochromic films. The prepared inorganic film is a WO3 film, and organic doping materials are phenylamine/o-phenylenediamine. SiO2 colloid crystals are used as templates, the WO3 film is filled into gaps of the colloid crystals, the porous films with regular pore arrangement are formed after the SiO2 colloid crystal templates are removed, the porous films are soaked into prepared organic matter precursors, and the organic composite inorganic electrochromic film materials are obtained through drying, pulling and drying.

Description

technical field [0001] The invention relates to a preparation method of an electrochromic film, in particular to a preparation method of an organic composite inorganic electrochromic film. Background technique [0002] Electrochromism refers to a stable and reversible change in the color or transparency of a material under the action of an applied voltage or electric field. Electrochromic films have the advantages of low operating voltage, low energy consumption, environmental protection, large vision, memory function, wide working range, and easy large-area production. They have broad application prospects in the fields of display devices, dimming glass, and information storage. . Electrochromic films can be divided into inorganic electrochromic films (such as WO 3 , NiO 2 、MoO 3 , V 2 o 5 etc.) and organic electrochromic films. The light absorption change of inorganic electrochromic materials is caused by the double injection / extraction of ions and electrons. Its pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/22C03C17/28C04B41/50
Inventor 伍媛婷王秀峰
Owner 靖江市浩鑫电气机械配件有限公司
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