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A method for large-scale production of flexible transparent electrodes

A transparent electrode, flexible technology, applied in the direction of climate sustainability, sustainable manufacturing/processing, equipment for manufacturing conductive/semiconductive layers, etc., can solve the problems of increasing steps, time and complexity, and increasing manufacturing costs , to achieve the effect of reducing the preparation process and production cycle, shortening the production cycle, and improving performance

Active Publication Date: 2022-07-12
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But surface treatment adds steps, time and complexity to industrial production, thus increasing the cost of preparation

Method used

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  • A method for large-scale production of flexible transparent electrodes
  • A method for large-scale production of flexible transparent electrodes
  • A method for large-scale production of flexible transparent electrodes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In the examples, PEDOT:PSS was purchased from Heraeus, Germany, product model PH1000. Phosphoric acid and other chemical reagents were purchased from Adamas Company.

[0035] A method for large-scale preparation of flexible transparent electrodes, characterized in that it comprises the following steps:

[0036] 1) Pretreatment of the substrate

[0037] 1.1) Cleaning of glass substrates

[0038] Place the divided square glass substrate on a PTFE cleaning bracket, place the bracket in a beaker, add deionized water, detergent, deionized water, and acetone in sequence to the beaker, and place the beaker in a beaker containing Cleaning is carried out in an ultrasonic cleaner of water, and the deionized water cleaning step is repeated many times; after cleaning, the solution in the beaker is replaced with isopropanol, and the cleaned glass substrate is stored;

[0039] 1.2) Residue removal treatment of glass substrate

[0040] After taking out the glass substrate stored i...

Embodiment 2

[0055] In the examples, PEDOT:PSS was purchased from Heraeus, Germany, product model PH1000. Sulfuric acid and other chemical reagents were purchased from Adamas Company.

[0056] A method for large-scale preparation of flexible transparent electrodes, characterized in that it comprises the following steps:

[0057] 1) Pretreatment of the substrate

[0058] 1.1) Cleaning of glass substrates

[0059] Place the divided square glass substrate on a PTFE cleaning bracket, place the bracket in a beaker, add deionized water, detergent, deionized water, and acetone in sequence to the beaker, and place the beaker in a beaker containing Cleaning is carried out in an ultrasonic cleaner of water, and the deionized water cleaning step is repeated many times; after cleaning, the solution in the beaker is replaced with isopropanol, and the cleaned glass substrate is stored;

[0060] 1.2) Residue removal treatment of glass substrate

[0061] After taking out the glass substrate stored in ...

Embodiment 3

[0075] In the examples, PEDOT:PSS was purchased from Heraeus, Germany, product model PH1000. Nitric acid and other chemicals were purchased from Adamas.

[0076] A method for large-scale preparation of flexible transparent electrodes, characterized in that it comprises the following steps:

[0077] 1) Pretreatment of the substrate

[0078] 1.1) Cleaning of glass substrates

[0079] Place the divided square glass substrate on a PTFE cleaning bracket, place the bracket in a beaker, add deionized water, detergent, deionized water, and acetone in sequence to the beaker, and place the beaker in a beaker containing Cleaning is carried out in an ultrasonic cleaner of water, and the deionized water cleaning step is repeated many times; after cleaning, the solution in the beaker is replaced with isopropanol, and the cleaned glass substrate is stored;

[0080] 1.2) Residue removal treatment of glass substrate

[0081] After taking out the glass substrate stored in isoacetone in the ...

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Abstract

The invention discloses a method for preparing flexible transparent electrodes on a large scale, which is characterized by comprising the following steps: 1) pretreatment of substrates; 2) Preparation of conductive solution based on doped PEDOT:PSS dispersion; placing PEDOT:PSS dispersion and acid solution in a container for mixing to obtain conductive solution based on doped PEDOT:PSS dispersion solution; the concentration range of the acid in the conductive solution based on the doped PEDOT:PSS dispersion liquid is 0.2-0.6 mol / L; the concentration range of the acid solution is 0.8-2 mol / L; 3) the film slinging of the dispersion liquid; depositing the conductive solution obtained in step 2) on the substrate obtained in step 1) by a coating process; 5) heat treatment of the transparent electrode; heating the substrate covered with the conductive solution prepared in step 3) at a constant temperature and cooling naturally When the temperature reaches room temperature, a transparent electrode is obtained; the temperature range of the constant temperature heating is 100-170° C., and the heating time is 5-120 min.

Description

technical field [0001] The invention relates to the field of organic optoelectronic technical materials, in particular to a method for preparing flexible transparent electrodes on a large scale. Background technique [0002] Transparent conductive electrodes are important components of various electronic devices, including touchscreens, displays, thin-film solar cells, and more. Currently, transparent conductive electrodes generally use metal oxides, such as indium tin oxide (ITO) films. Due to the limited reserves of indium metal elements, and the need for vacuum coating equipment and technology for metal oxide films, various factors have led to the increase in the cost of the electrode; more importantly, due to the inherent brittleness of metal oxides, it cannot be used in the growing trend. in flexible devices. [0003] Through research, it was found that the transparent electrodes prepared based on poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) (PEDOT:PSS)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00
CPCH01B13/0026
Inventor 孙宽王晨吴法霖李猛周永利
Owner CHONGQING UNIV