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Preparation method of self-supporting PEDOT/PSS transparent conductive film

A transparent conductive film, self-supporting technology, used in cable/conductor manufacturing, circuits, electrical components, etc., can solve the problems of film surface smoothness and photoelectric properties, can not use self-supporting film alone, limit the use performance and other problems. Good conductivity, smooth surface and good stability

Inactive Publication Date: 2015-09-23
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current application generally needs to be attached to the substrate, and the self-supporting film cannot be used alone, which seriously limits its performance.
Some people try to use the back substrate etching method and the release agent method to obtain a self-supporting film, but these methods are often complicated to operate, and the film needs to be transferred between various substrates, and the introduction of the release agent will affect the surface of the film to a certain extent. smoothness and optoelectronic performance

Method used

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  • Preparation method of self-supporting PEDOT/PSS transparent conductive film
  • Preparation method of self-supporting PEDOT/PSS transparent conductive film
  • Preparation method of self-supporting PEDOT/PSS transparent conductive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Ultrasonic clean the PET substrate with detergent water, absolute ethanol, and deionized water for 15 minutes respectively, and dry it with a hair dryer for later use;

[0033] (2) Prepare PEDOT / PSS dispersion doped with polyethylene glycol 4000 (1 wt%) fluorocarbon surfactant Capstone FS-30 (1 wt%), and stir evenly at room temperature;

[0034] (3) Coat the film on the cleaned PET substrate at room temperature with a motor speed of 100.8rpm and No.9 wire bar, heat and dry at 120°C to obtain a film with PET as the substrate;

[0035] (4) Cut a piece of appropriate size and place it in a petri dish, wash it with formic acid to separate the film from the PET substrate, and wash it with deionized water for 5 times;

[0036] (5) Freeze-dry to obtain an unsupported film.

Embodiment 2

[0038] (1) Ultrasonic clean the PET substrate with detergent water, absolute ethanol, and deionized water for 15 minutes respectively, and dry it with a hair dryer for later use;

[0039] (2) Prepare PEDOT / PSS dispersion doped with ethylene glycol (7 wt%), polyethylene glycol 4000 (1 wt%), fluorocarbon surfactant Capstone FS-30 (1 wt%), and stir at room temperature Uniform;

[0040] (3) Coat the film on the cleaned PET substrate at room temperature with a motor speed of 100.8rpm and No.9 wire bar, heat and dry at 120°C to obtain a film with PET as the substrate;

[0041] (4) Cut a piece of appropriate size and place it in a petri dish, wash it with deionized water to separate the film from the PET substrate, and then rinse it with deionized water for 5 times;

[0042] (5) Heat and dry to obtain an unsupported film.

Embodiment 3

[0044] (1) Ultrasonic clean the PET substrate with detergent water, absolute ethanol, and deionized water for 15 minutes respectively, and dry it with a hair dryer for later use;

[0045] (2) Prepare doped ethylene glycol (7 wt%), polyethylene glycol 4000 (1 wt%), halloysite nanotubes (2 wt%), fluorocarbon surfactant Capstone FS-30 (1 wt% ) PEDOT / PSS dispersion liquid, stir evenly at room temperature;

[0046] (3) Coat the film on the cleaned PET substrate at room temperature with a motor speed of 100.8rpm and No.9 wire bar, heat and dry at 120°C to obtain a film with PET as the substrate;

[0047] (4) Cut a piece of appropriate size and place it in a petri dish, wash it with deionized water to separate the film from the PET substrate, and then rinse it with deionized water for 5 times;

[0048] (5) It can be obtained from the support film by heating and drying.

[0049]The reagent PEDOT / PSS used in the above examples is poly(3,4-ethylenedioxythiophene)-poly(styrenesulfoni...

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Abstract

The invention discloses a preparation method of a self-supporting PEDOT / PSS transparent conductive film, and belongs to the field of conducting polymer function materials. The method comprises the following steps that a PEDOT / PSS dispersion liquid is configured, and stirred uniformly in a sample bottle by magnetic force; a PET substrate which is cleaned by washing is coated with the PEDOT / PSS dispersion liquid under certain condition, and heated and dried to form a film; and the film is washed by deionized water (or formic acid) so that the film is disengaged from the PET substrate, the film is dried by heating or vacuum freezing, and the self-supporting PEDOT / PSS transparent conductive film is obtained. The method is simple in operation, and the prepared film is smooth in surface, high in light transmission and conductivity performance, and soft, and can be bent at will.

Description

technical field [0001] The invention belongs to the field of conductive polymer functional materials, and in particular relates to a method for preparing a self-supporting PEDOT / PSS transparent conductive film. Background technique [0002] Conductive polymer is a new type of functional material, which has a special structure and excellent physical and chemical properties, and has broad application prospects in the fields of energy, information, optoelectronic devices, sensors, and metal anticorrosion. In particular, indium tin oxide (ITO), the most widely used transparent conductive material, cannot be used in the field of flexible electronics due to its brittleness, and indium resources are scarce and expensive, which has largely restricted the flexibility, The development trend of ultra-thin and lightweight. Therefore, the development of a thin-film material that can replace ITO and does not depend on the substrate is just around the corner. Conductive polymers are cons...

Claims

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Application Information

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IPC IPC(8): H01B13/00
Inventor 严虎李娟
Owner ZHENGZHOU UNIV
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