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An electrochromic thin film with ordered structure of reticulum and its preparation method

An electrochromic and ordered structure technology, applied in the direction of metal cyanide, nickel oxide/nickel hydroxide, tungsten oxide/tungsten hydroxide, etc., can solve the problems of long discoloration time, narrow modulation range, low coloring efficiency, etc. Achieve the effect of simple operation, controllable product and sufficient redox reaction

Active Publication Date: 2019-10-18
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the technical problems of the existing electrochromic materials in the field, such as long discoloration time, narrow modulation range, and low coloring efficiency, the present invention provides an electrochromic thin film with an ordered reticulum structure and a preparation method thereof

Method used

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  • An electrochromic thin film with ordered structure of reticulum and its preparation method
  • An electrochromic thin film with ordered structure of reticulum and its preparation method
  • An electrochromic thin film with ordered structure of reticulum and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0086] (1) Clean the substrate: Clean the glass slide and silicon wafer sequentially with acetone, ethanol, and deionized water for 30 minutes, and then dry them with a plasma cleaner for 3 minutes to obtain clean glass slides and silicon wafers;

[0087] (2) Prepare the template:

[0088] a. Drop suspension 1 and suspension 2 containing polystyrene microspheres onto two clean glass slides in step (1) respectively, flatten them, and dry to obtain slide 1 spread with polystyrene microspheres and slide glass 2; the particle size of polystyrene microspheres in suspension 1 is 2 μm, and the particle size of polystyrene microspheres in suspension 2 is 500 nm;

[0089] b. Put the glass slide 1 flat on the water surface, pick up the polystyrene microspheres with the clean silicon wafer of step (1), and heat at 110° C. for 1 min to obtain a silicon wafer spread with polystyrene microspheres;

[0090] c. plate gold on the surface of the silicon wafer with polystyrene microspheres spre...

Embodiment 2

[0098] (1) Clean the substrate: Clean the glass slide and silicon wafer sequentially with acetone, ethanol, and deionized water for 30 minutes, and then dry them with a plasma cleaner for 3 minutes to obtain clean glass slides and silicon wafers;

[0099] (2) Prepare the template:

[0100] a. Drop suspension 1 and suspension 2 containing polystyrene microspheres onto two clean glass slides in step (1) respectively, flatten them, and dry to obtain slide 1 spread with polystyrene microspheres and slide glass 2; the particle size of polystyrene microspheres in suspension 1 is 2 μm, and the particle size of polystyrene microspheres in suspension 2 is 500 nm;

[0101] b. Put the glass slide 1 flat on the water surface, pick up the polystyrene microspheres with the clean silicon wafer of step (1), and heat at 110° C. for 1 min to obtain a silicon wafer spread with polystyrene microspheres;

[0102] c. plate gold on the surface of the silicon wafer with polystyrene microspheres spre...

Embodiment 3

[0110] (1) Clean the substrate: Clean the glass slide and silicon wafer sequentially with acetone, ethanol, and deionized water for 30 minutes, and then dry them with a plasma cleaner for 3 minutes to obtain clean glass slides and silicon wafers;

[0111] (2) Prepare the template:

[0112] a. Drop suspension 1 and suspension 2 containing polystyrene microspheres onto two clean glass slides in step (1) respectively, flatten them, and dry to obtain slide 1 spread with polystyrene microspheres and slide glass 2; the particle size of polystyrene microspheres in suspension 1 is 2 μm, and the particle size of polystyrene microspheres in suspension 2 is 500 nm;

[0113] b. Put the glass slide 1 flat on the water surface, pick up the polystyrene microspheres with the clean silicon wafer of step (1), and heat at 110° C. for 1 min to obtain a silicon wafer spread with polystyrene microspheres;

[0114] c. plate gold on the surface of the silicon wafer with polystyrene microspheres spre...

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Abstract

The invention discloses a preparation method of an electrochromic film with a net granule ordered structure. The method is characterized in that a polystyrene template is used as a working electrode;the polystyrene template is removed by electrochemical deposition in an electrochemical deposition solution so as to obtain the electrochromic film with the net granule ordered structure. The preparation method is free from roasting and has the advantages of being simple and convenient to operate, efficient, energy saving, and controllable in product. The invention further discloses the electrochromic film with the net granule ordered structure. The electrochromic film with the net granule ordered structure is prepared according to the preparation method. Compared with a dense electrochromic film, the electrochromic film with the net granule ordered structure is high in specific surface area and is not independent on the angle of reflecting light; the coloring efficiency is improved; the color change range is expanded; the response time in the color changing process is shortened.

Description

technical field [0001] The invention relates to the field of electrochromic thin films, in particular to an electrochromic thin film with an ordered reticulum structure and a preparation method thereof. Background technique [0002] Electrochromism refers to the process of stable and reversible changes in the color or transmittance of materials under the external regulation of voltage. Scholars at home and abroad have conducted in-depth and extensive research on electrochromic thin films and their applications. [0003] At present, electrochromic materials are considered to be one of the most promising smart materials, and have been initially used in the fields of smart windows, automotive anti-glare rearview mirrors, etc., and have huge potential application value. [0004] The discoloration principle of the electrochromic material is that under the promotion of low voltage, the ions in the electrolyte are injected into the electrochromic material to cause a redox reaction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G53/04C01G41/02C01C3/12
Inventor 刘涌滑晨铮韩高荣杨士宽汪建勋
Owner ZHEJIANG UNIV