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Patterned transparent electrode fabrication method

A transparent electrode and patterning technology, applied in cable/conductor manufacturing, circuits, electrical components, etc., can solve the problems of limited selection of conductive materials and lack of controllability of patterns, so as to improve conductivity and light transmittance, and broaden the range , to ensure the effect of controllability

Active Publication Date: 2012-07-04
浙江暖科能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has the characteristics of simple process and low cost, but the choice of conductive materials is limited. Only conductive materials with self-assembly properties can form patterned electrodes, and the formed patterns are also lack of controllability.

Method used

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  • Patterned transparent electrode fabrication method
  • Patterned transparent electrode fabrication method
  • Patterned transparent electrode fabrication method

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Such as figure 1 As shown, the 200nm cellulose acetate filter membrane is selected as the porous filter membrane (1) with a pore size of 200nm. The filter membrane 1 is covered with a mask 2, and the bottom is provided with a porous sand core 3, and the mask 2 has a required pattern. negative pattern. First get single-walled carbon nanotube powder 0.1mg and join in the water of 200ml, and add the surfactant sodium dodecylsulfonate (SDS) of 20g, form carbon nanotube dispersion liquid through ultrasonic stirring then, this dispersion liquid is passed through After high-speed centrifugation at a rate of 4000 rpm for 40 minutes, the supernatant was taken, namely the desired carbon nanotube monodispersion 4, and the concentration of the monodispersion was 0.5 wt%. Take 0.1ml of the carbon nanotube monodispersion and dilute it to 10ml with deionized water, add the carbon nanotube monodispersion 4 into the porous filter membrane 1 and filter through the porous sand core 3 unt...

Embodiment 2

[0020] Preparation of graphene monodispersion: take 3g of layered graphite and place it in a 250ml three-necked flask, add 70ml of concentrated sulfuric acid and 1.6g of NaNO 3 . The three-neck flask was cooled to 0°C in an ice-water bath, and then 9.0 g of potassium permanganate was slowly added to keep the temperature of the mixture not exceeding 20°C. Then the mixture was heated at 35°C, stirred and kept for 60 min, then 140 ml of water was added dropwise within 15 min, and after cooling to room temperature, 400 ml of water and 3 ml of H were added. 2 o 2 The mixture obtained by mixing and stirring evenly was filtered through a PTEF porous filter membrane with a pore size of 200nm, and the obtained filtrate was washed 3 times with deionized water, and the collected liquid was dispersed into 200ml of deionized water to obtain a graphene oxide dispersion. Take 100ml of the above dispersion into a 250ml three-necked bottle, add 1ml of hydrazine hydrate and 5g of SDS, place t...

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Abstract

The invention discloses a patterned transparent electrode fabrication method. The method comprises the steps of (1) depositing a conductive nanoparticle dispersion solution on a porous filter membrane with a negative pattern mask to obtain a patterned transparent conductive film adhered on the porous filter membrane; and (2) removing the mask, transferring the patterned transparent conductive film on the porous filter membrane onto a transparent substrate, and removing the porous filter membrane to obtain the patterned transparent electrode; wherein the dispersion solution contains conductive nanoparticles 0.015wt% to 5wt%, dispersing agent 0.15wt% to 20wt%, and water in balance; and the dispersing agent is selected from arbitrary one or the combination of a surfactant, organic acid, high-molecular polysaccharide and DNA macromolecules. The method has the advantages of simple process, low cost and large material selection range, and can accurately design and control the formed pattern according to requirement.

Description

technical field [0001] The invention relates to a method for preparing a patterned transparent electrode. Background technique [0002] Patterned transparent electrodes are widely used in display, lighting, touch control, solar cells and other fields. At present, the materials of transparent electrodes mainly include ITO films, conductive polymer coatings, metal nanowires, composites of metal nanoparticles and polymers, and carbon nanotube films that are sputtered onto glass or other transparent substrates by magnetron sputtering. According to the different transparent electrode materials, the current preparation methods of patterned transparent electrodes mainly include the following: 1. The method with the highest degree of industrialization is to etch patterns on ITO glass by photolithography, but the process is complicated. The procedures involved are cumbersome and the degree of automation of production is low. 2. In the patent document of Lanzhou Institute of Chemica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B5/14
Inventor 陈新江周红波
Owner 浙江暖科能源技术有限公司
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