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Method for preparing inorganic and organic combined electrochromic film

An electrochromic film and inorganic composite technology, applied in the field of electrochromic film preparation, can solve problems such as uneven distribution and influence, and achieve the effect of tight and uniform bonding, uniform bonding, and uniform distribution of inorganic particles

Inactive Publication Date: 2012-01-04
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method of organic-inorganic composite electrochromic film determines the combination mode between organic and inorganic materials, which is very important to the performance of electrochromic film. In addition, the uniform distribution between organic and inorganic materials also affects its performance. The prepared composite electrochromic materials are often unevenly distributed between the two

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for preparing an inorganic composite organic electrochromic film, comprising the following steps:

[0025] The first step is to dissolve ethyl orthosilicate in a volume 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 volume of anhydrous alcohol. Water and ethanol are configured into solution B, a:b=1:1, then, solution A is placed in a magnetic stirring device, and solution B is added in solution A under constant stirring, and the concentration of ethyl orthosilicate in the mixed solution is 0.2mol / L, after reacting for 22h, separate the precipitate, centrifuge and wash and dry at 50°C to obtain SiO 2 Nano or submicron spheres;

[0026] 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 Sphe...

Embodiment 2

[0032] A method for preparing an inorganic composite organic electrochromic film, comprising the following steps:

[0033] The first step is to dissolve ethyl orthosilicate in a volume of absolute ethanol to configure solution A, and then dissolve 0.8 times the volume of tetraethyl orthosilicate in ammonia water with a mass concentration of 28% in b volume of anhydrous alcohol Water and ethanol are configured into solution B, a:b=1:1, then, solution A is placed in a magnetic stirring device, and solution B is added in solution A under constant stirring, and the concentration of ethyl orthosilicate in the mixed solution is 0.2mol / L, after 22 hours of reaction, the precipitate was separated, washed by centrifugation and dried at 60°C to obtain SiO 2 Nano or submicron spheres;

[0034]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...

Embodiment 3

[0040] A method for preparing an inorganic composite organic electrochromic film, comprising the following steps:

[0041] The first step is to dissolve ethyl orthosilicate in a volume of absolute ethanol to form solution A, and then dissolve ammonia water with a mass concentration of 25% that is 5 times the volume of tetraethyl orthosilicate in b volume of anhydrous alcohol. Water and ethanol are configured into solution B, a:b=1:1, then, solution A is placed in a magnetic stirring device, and solution B is added in solution A under constant stirring, and the concentration of ethyl orthosilicate in the mixed solution is 0.6mol / L, after 22 hours of reaction, the precipitate was separated, washed by centrifugation and dried at 55°C to obtain SiO 2 Nano or submicron spheres;

[0042] In the second step, two kinds of SiO with the prepared particle size ratio of large spheres: small spheres = 6:1 2 Spherical particles were weighed respectively according to the mass ratio of larg...

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Abstract

The invention discloses a method for preparing an inorganic and organic combined electrochromic film. The prepared organic thin film is phenylamine / o-phenylenediamine thin film, WO3 is used as an inorganic doping material, SiO2 colloidal crystal is used as a template, the organic thin film is filled in the gaps in the SiO2 colloidal crystal, the SiO2 colloidal crystal template is removed, the thin film is immersed in prepared wet gel of tungsten oxide, and the thin film is dried and calcined to form the inorganic and organic combined electrochromic thin film material.

Description

technical field [0001] The invention relates to a preparation method of an electrochromic film, in particular to a preparation method of an inorganic composite organic 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.), organic electrochromic film composite electrochromic film three categories. Composite electrochromic film combines the advantages of inorganic electrochromic film and organi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/42C04B41/52
Inventor 伍媛婷王秀峰
Owner SHAANXI UNIV OF SCI & TECH
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