Preparing method and application of transparent conducting thin film

A transparent conductive film and film technology, applied in the direction of cable/conductor manufacturing, conductive layer on insulating carrier, circuit, etc., can solve problems such as easy to fall off, easy to form bubbles, easy to deform the film, etc. Focus on the effect of good light transmittance

Active Publication Date: 2014-07-02
国科广化(南雄)新材料研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Chinese patent CN102993995A discloses a preparation method of a transparent conductive adhesive film. The method uses a hot pressing method to press nano-silver wires on the surface of a transparent PET film; Heat and pressurize, bubbles are easy to form after film formation, and the film is easy to deform
Chinese patent CN102820074A discloses a conductive substrate for optoelectronic devices and its preparation method. In this method, in order to improve the conductivity of the graphene conductive film, a layer of nano-silver wire is added on its surface; although this method can effectively improve the The conductivity of the film, but the nano-silver wires are easier to fall off when attached to the surface of the film, and the film does not use other methods to reinforce the conductive components attached to the surface, which affects the stability of the conductive film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The surface treatment method of film base material, comprises the following steps:

[0037] (1) Taking PET as an example, put the film base material into a mixture of ethanol and acetone for 30 minutes, repeat 3 times, the ultrasonic frequency is 65KHz, rinse with deionized water, dry for later use; Treat the surface of the film substrate for 50s to obtain a hydrophilic film A;

[0038] The argon flow rate is 60 sccm, the oxygen flow rate is 6 sccm, the discharge parameter is a power of 100W, and the pressure in the reaction chamber is 200mTorr;

[0039] The contact angle of the PET film before the treatment is measured with a contact angle tester to be 71 °, and the contact angle of the film A is 22 °. It can be seen that the hydrophilicity of the PET film before the treatment is poor, and the hydrophilicity of the PET film after the treatment is obviously enhanced;

[0040] (2) Spray polyglycidyl methacrylate (PGMA) solution (concentration: 0.1g / mL, solvent: DMF) on ...

Embodiment 2

[0043] The preparation method of PET / nano silver wire conductive film comprises the following steps:

[0044] (1) Put the PET film substrate into the mixture of ethanol and acetone for 30 minutes, repeat 3 times, the ultrasonic frequency is 65KHz, rinse with deionized water, dry for later use; then use argon oxygen plasma to treat the film substrate Surface treatment for 50s to obtain a hydrophilic film A;

[0045] The argon flow rate is 60 sccm, the oxygen flow rate is 6 sccm, the discharge parameter is a power of 100W, and the pressure in the reaction chamber is 200mTorr;

[0046] (2) Spray polyglycidyl methacrylate (PGMA) solution (concentration: 0.1g / mL, solvent: THF) on film A, and dry at 60°C for 1 hour to obtain film B; then 50mg / L Spray the ethanol solution of nano-silver wires on the film B, put it in a vacuum drying oven and dry it at 140°C for 4 minutes to obtain film C;

[0047] The size distribution of silver nanowires is 20-30 microns, and the radius is 80-120 ...

Embodiment 3

[0053] A preparation method of PET / nano-silver wire / graphene transparent conductive film, comprising the following steps:

[0054] (1) Put the PET film substrate into the mixture of ethanol and acetone for 30 minutes, repeat 3 times, the ultrasonic frequency is 65KHz, rinse with deionized water, dry for later use; use argon oxygen plasma to treat the surface of the film substrate Treat for 50s to obtain a hydrophilic film A;

[0055] The argon flow rate is 60 sccm, the oxygen flow rate is 6 sccm, the discharge parameter is a power of 100W, and the pressure in the reaction chamber is 200mTorr;

[0056] (2) Spray polyglycidyl methacrylate (PGMA) solution (concentration: 0.1g / mL, solvent: THF) on film A, and dry at 60°C for 1 hour to obtain film B; then 50mg / L Spray the ethanol solution of nano-silver wires on film B, spraying once in total, and the spraying time is 10s. After spraying, put the film in a vacuum drying oven at 140°C for 4 minutes to obtain film C;

[0057] Among...

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Abstract

The invention discloses a preparing method and application of a transparent conducting thin film. The method comprises the steps that thin film base materials are placed in mixed liquid of ethyl alcohol and acetone for ultrasonic processing for 90 min-150 min, deionized water is used for washing, and drying is carried out for standby application; then argon oxygen plasma is used for surface processing, and a hydrophilic thin film A is obtained; glycidyl polymethacrylate is dissolved in a solvent and then is arranged on the hydrophilic thin film A in a spraying-coating mode, the solvent is removed, a thin film B is obtained, then an ethanol solution of a silver nanowire is arranged on the thin film B in a spraying-coating or blade-coating mode, vacuum drying is carried out, and a thin film C is obtained; and the argon oxygen plasma is used for carrying out surface processing on the thin film C, a thin film D is obtained, then a graphene water solution is used for being sprayed on the thin film C in a coating mode by a plurality of times, finally vacuum drying is carried out, and the transparent conducting thin film is obtained. The transparent conducting thin film can be stretched, great electrical conductivity and great light transmittance are achieved, and a conducting coating layer and a substrate of the thin film have great adhesive force.

Description

technical field [0001] The invention belongs to the technical field of preparation of conductive thin films, and in particular relates to a preparation method and application of a transparent conductive thin film. Background technique [0002] Conductive and transparent films are required in the manufacture of flat panel displays and touch screens. However, transparent substances in nature are often non-conductive, such as glass, etc.; and substances with better conductive properties are often opaque, such as metals. Conductivity and transparency often exist as a pair of contradictions. Therefore, it is particularly important to develop new materials that are both conductive and transparent. At present, the most widely used transparent conductive film is based on glass, ceramics, etc., but these substrates are generally brittle and not easily deformed. Compared with hard substrates, transparent conductive films prepared with flexible substrates not only have the same phot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B5/14
Inventor 胡继文吴丹邹海良齐键
Owner 国科广化(南雄)新材料研究院有限公司
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