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A method of improving the adhesion of flexible transparent conductive film

A technology of transparent conductive film and transparent conductive layer, which is applied to the conductive layer, circuit, electrical components and other directions on the insulating carrier, can solve the problems of easy scratching and falling off of the transparent conductive film, limiting the application of PEDOT conductive film, etc. Low cost, high light transmittance, improved peeling and scratch resistance

Active Publication Date: 2020-11-24
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the transparent conductive film prepared with PEDOT:PSS conductive ink has the problems of easy scratching and easy peeling off from the substrate, which seriously limits the application of PEDOT conductive film in industry. It is necessary to realize the large-scale production of PEDOT conductive film , Improving the adhesion between the film and the substrate and the scratch resistance of the film are technical barriers that cannot be bypassed

Method used

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  • A method of improving the adhesion of flexible transparent conductive film
  • A method of improving the adhesion of flexible transparent conductive film
  • A method of improving the adhesion of flexible transparent conductive film

Examples

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Comparison scheme
Effect test

Embodiment 1

[0051] In the examples, PEDOT:PSS was purchased from Heraeus, Germany, product model PH1000. Other drugs and solvents were purchased from Sinopharm Chemical Reagent Co., Ltd.

[0052] Such as figure 1 and figure 2 Shown, a kind of method for improving the adhesiveness of flexible transparent conductive film is characterized in that, comprises the following steps:

[0053] 1) Preparation of organic polymer conductive ink

[0054] Add 5mL of PEDOT:PSS dispersion liquid and 5% dimethyl sulfoxide into the container successively, after stirring, the conductive ink doped with organic polymer is obtained;

[0055] In the stirring process: the stirring rate is 500rpm, and the stirring time is 20min.

[0056] 2) Preparation of metal oxide quantum dots

[0057] Mix 2ml of zinc acetate solution, 1ml of sodium hydroxide solution and 10ml of isopropanol, and disperse evenly to obtain a metal oxide quantum dot solution;

[0058] The concentration of the zinc acetate solution is 0.01-...

Embodiment 2

[0078] A method for improving the adhesion of a flexible transparent conductive film, characterized in that it comprises the following steps:

[0079] 1) Preparation of organic polymer conductive ink

[0080] Add 5mL of PEDOT:PSS dispersion liquid and 5% dimethyl sulfoxide into the container successively, after stirring, the conductive ink doped with organic polymer is obtained;

[0081] In the stirring process: the stirring rate is 500rpm, and the stirring time is 20min.

[0082] 2) Coating a layer of conductive ink on the base material

[0083] Coating the organic polymer conductive ink obtained in step 1) on the base material after pretreatment;

[0084] The pretreatment process of described substrate material is:

[0085] Cut the base material into a square base of 20mm×20mm, clean it with detergent, deionized water, acetone, and isopropanol in sequence for 20 minutes, and then use high-purity nitrogen to remove residues from the base material;

[0086] Put the dried s...

Embodiment 3

[0094] A method for improving the adhesion of a flexible transparent conductive film, characterized in that it comprises the following steps:

[0095] 1) Preparation of organic polymer conductive ink

[0096] Add 5mL of PEDOT:PSS dispersion liquid and 5% dimethyl sulfoxide into the container successively, after stirring, the conductive ink doped with organic polymer is obtained;

[0097] In the stirring process: the stirring rate is 500rpm, and the stirring time is 20min.

[0098] 2) Preparation of metal oxide quantum dots

[0099] Mix 2ml of zinc acetate solution, 1ml of sodium hydroxide solution and 10ml of isopropanol, and disperse evenly to obtain a metal oxide quantum dot solution;

[0100] The concentration of the zinc acetate solution is 0.01-1M;

[0101] The concentration of the sodium hydroxide is 0.05~1M;

[0102] 3) Coating a layer of conductive ink on the base material

[0103] The 50 μm thick optical PET substrate was cut into A4 paper size, cleaned with dete...

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Abstract

The invention discloses a method for improving adherence of a flexible transparent conducting thin film. The method is characterized in that a flexible base material is coated with a layer of organictransparent conducting layer, and a metal oxide thin film is generated on the transparent conducting layer. A PEDOT thin film is protected under the metal oxide thin film, so that the PEDOT thin filmis isolated from the external environment, and the problem that the PEDOT conducting thin film is peeled off, scratched and contaminated with impurities in the using process is avoided; and in addition, as the metal oxide thin film belongs to a semiconductor material, is conductive and has high light transmittance, the photoelectric property of the PEDOT transparent conducting thin film cannot beinfluenced.

Description

technical field [0001] The invention relates to the field of organic optoelectronic technology materials, in particular to a method for improving the adhesion of a flexible transparent conductive film. Background technique [0002] Optoelectronic devices such as light-emitting diodes, solar cells, touch panels, etc. have been widely and important used in many fields. Optoelectronic devices require at least one transparent electrode in order for the optoelectronic device to absorb or emit light. Indium tin oxide is currently the most commonly used transparent electrode material. However, the scarcity of indium, the high requirements for the preparation of indium tin oxide thin films, and the inherent brittleness of indium tin oxide have greatly affected its future applications. Therefore, there is an urgent need to find new transparent conductive materials to replace indium tin oxide. [0003] Poly(3,4-ethylenedioxythiophene) (PEDOT) was synthesized for the first time in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B5/14H01B1/12H01B13/00
CPCH01B1/12H01B5/14H01B13/00
Inventor 孙宽奚佳磊马驰张亦杨
Owner CHONGQING UNIV
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