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Preparation method of composite conductive film

A composite conductive and thin-film technology, which is applied in the direction of equipment for manufacturing conductive/semiconductive layers, cable/conductor manufacturing, conductive layers on insulating carriers, etc., can solve the problem that affects the service life of silver nanowire transparent conductive films and cannot meet Flexible conductive film preparation requirements, organic protective agent is easy to age and other issues, to achieve the effect of low sheet resistance, smooth surface, and improved scratch resistance

Active Publication Date: 2019-11-22
重庆鼎旺科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the organic protective agent is easy to age, which will affect the service life of the silver nanowire transparent conductive film
Another patent CN108091414 A discloses a method for preparing a composite transparent conductive film of silver nanowires and zinc oxide on a glass substrate, but the reaction temperature is 200-260°C, and the reaction chamber pressure is 10-500 Pa, which requires high temperature in a vacuum environment. reaction, the patent CN 108376588 A uses nickel oxide as a protective layer, and obtains a composite transparent conductive film of silver nanowires and nickel oxide by spin coating and annealing. , such as PET film, its maximum temperature resistance is 150 ° C, which obviously cannot meet the requirements for the preparation of flexible conductive films

Method used

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  • Preparation method of composite conductive film
  • Preparation method of composite conductive film

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Experimental program
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Effect test

Embodiment 1

[0036] A preparation method of a silver nanocomposite film protected by nickel oxide, as follows:

[0037] (1) Substrate pretreatment

[0038] Continuous cleaning in an ultrasonic bath containing detergent, acetone, deionized water and ethanol, each step for 10 min, and then blow dry with nitrogen;

[0039] (2) Silver nanowire coating

[0040] Coat the silver nanowire ink produced by C3Nano Company on the PET substrate by roller coating method, dry at 110°C for 10 minutes, and the final thickness of the film is 200nm;

[0041] (3) Nickel oxide coating preparation

[0042] a. Preparation of precursor solution

[0043] Disperse nickel hydroxide in ammonia water, drop into an organic mixed solvent composed of glacial acetic acid and ammonium acetate, wherein the mass ratio of nickel hydroxide, ammonia water and organic mixed solvent is 1.5:40:0.03, and the mixed solvent is based on the volume ratio of glacial acetic acid and ammonium acetate 2:1 mixing; magnetically stir at 3...

Embodiment 2

[0049] A preparation method of a silver nanocomposite film protected by nickel oxide, as follows:

[0050] (1) Substrate pretreatment

[0051] Continuous cleaning in an ultrasonic bath containing detergent, acetone, deionized water and ethanol, each step for 10 min, and then blow dry with nitrogen;

[0052] (2) Silver nanowire coating

[0053] Coat the silver nanowire ink produced by C3Nano Company on the PVC substrate by scraping method, dry at 110°C for 10 minutes, and the final thickness of the film is 400nm;

[0054] (3) Nickel oxide coating preparation

[0055] a. Preparation of precursor solution

[0056] Disperse nickel hydroxide in ammonia water, drop into an organic mixed solvent composed of glacial acetic acid and ammonium acetate, wherein the mass ratio of nickel hydroxide, ammonia water and organic mixed solvent is 3:20:0.05, and the mixed solvent is based on the volume ratio of glacial acetic acid and ammonium acetate Mix 5:1; stir magnetically at 25°C for 4 h...

Embodiment 3

[0061] A preparation method of a silver nanocomposite film protected by nickel oxide, as follows:

[0062] (1) Substrate pretreatment

[0063] Continuous cleaning in an ultrasonic bath containing detergent, acetone, deionized water and ethanol, each step for 10 min, and then blow dry with nitrogen;

[0064] (2) Silver nanowire coating

[0065] Coat the self-made silver nanowire ink on the glass substrate by spraying method, the diameter of the silver nanowire is 30nm, the length is 20μm, dry at 110°C for 10 minutes, and the final thickness of the film is 200nm;

[0066] (3) Nickel oxide coating preparation

[0067] a. Preparation of precursor solution

[0068] Disperse nickel hydroxide in ammonia water, drop into an organic mixed solvent composed of glacial acetic acid and ammonium acetate, wherein the mass ratio of nickel hydroxide, ammonia water and organic mixed solvent is 2:30:0.01, and the mixed solvent is based on the volume of glacial acetic acid and ammonium acetate...

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Abstract

The invention discloses a preparation method of a composite conductive film. The method comprises substrate pretreatment, silver nanowire layer coating and nickel oxide layer coating, and is characterized in that the nickel oxide layer coating comprises the following steps: preparing a precursor solution, heating the substrate coated with the silver nanowire layer, atomizing the precursor solution, spraying the atomized solution on the substrate, and finally forming a nickel oxide uniform coating on the surface of the substrate. High-temperature annealing treatment is not needed in the preparation process; according to the method, the binding power of the film and the substrate and the scratch resistance of the surface of the film are improved; the conductivity of the film is improved; theprepared silver nanowire composite film protected by nickel oxide is uniform in coating, has a smooth surface, high light transmittance and low square resistance, the light transmittance reaches 85%-90%, the square resistance reaches 8-12 ohm / square, the method can be directly applied to preparation of organic solar cells, energy level matching can be achieved without adding an additional bufferlayer between the film and a photosensitive layer, and the stability is good.

Description

technical field [0001] The invention relates to the field of preparation of transparent conductive films, in particular to a preparation method of a composite conductive film. Background technique [0002] Silver nanowire transparent conductive film has the advantages of low resistivity, high visible light transmittance, does not contain rare elements, and has low production cost. It is an ideal substitute for the widely used indium tin oxide (ITO) film. The silver nanowire transparent conductive film is first dispersed in an organic solvent with silver nanowires, and then the coating is realized by rolling coating, scraping coating, spin coating, inkjet printing and other methods. Due to the poor adhesion of the silver nanowire itself, it is necessary to coat the organic material multiple times to achieve the firm adhesion of the silver nanowire transparent conductive film to the substrate. For example, the measures taken by the patent CN 105185431 A include the following ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B13/22H01B5/14
CPCH01B5/14H01B13/0026H01B13/22
Inventor 程江徐康陈柯艺张真李璐
Owner 重庆鼎旺科技有限公司