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Preparation method of composite Ag nano-wire transparent conductive film

A technology of transparent conductive film and nanowire, which is applied in nanostructure manufacturing, nanotechnology, nanotechnology, etc., and can solve problems such as short service life, easy wear and tear, and easy falling off

Inactive Publication Date: 2015-07-29
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the Chinese patents whose application numbers are 200910112925.4 and 200910112924.X all disclose a method for preparing a transparent conductive film based on silver nanowires, which are all by first preparing a silver nanowire conductive layer, and then increasing the adhesion layer to improve the silver nanowire. Although the adhesion of the wires has also solved the problem that the silver nanowires are easy to come off, the contact resistance between the silver nanowires in the silver nanowire transparent conductive film made by it is relatively large, the conductivity is poor, and the dispersion of the silver wires is poor. It is easy to cause poor uniformity of the film
Another example is that the Chinese patent application number 201110246770.0 discloses a method for preparing a transparent conductive film of silver nanowires, which is to mix the silver nanowires with water-soluble polymers, cross-linking agents and other materials evenly, and then Although it can also realize the preparation of silver nanowire transparent conductive film, it still has the problems of large contact resistance and poor conductivity between silver nanowires. In addition, its surface flatness Poor and easy to wear, resulting in a short service life

Method used

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  • Preparation method of composite Ag nano-wire transparent conductive film
  • Preparation method of composite Ag nano-wire transparent conductive film

Examples

Experimental program
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Effect test

Embodiment 1

[0012] Mix 1ml of silver nanowire aqueous solution with a concentration of 10mg / ml, 6ml of methanol and 0.1ml of 20% by weight PEDOT:PSS solution, stir evenly, and record it as solution ①;

[0013] Mix and stir 0.4g cellulose acetate butyrate, 30ml isopropanol, and 10ml ethyl lactate, and record it as solution ②;

[0014] Using the kun coating method, coat a layer of solution with a film thickness of 200-400nm on the glass substrate ①, vacuum dry at 120 degrees for 2 hours, and then coat a layer of solution with a film thickness of 100-200nm on it② , and dried at 120°C for 2 hours to obtain the silver nanowire transparent conductive film. The visible light (550nm) light transmittance of the silver nanowire transparent conductive film obtained in this example is 85%, the sheet resistance is 20Ω / □, and the surface roughness of the film is uniform.

Embodiment 2

[0016] Mix 1ml of silver nanowire aqueous solution with a concentration of 10mg / ml, 6ml of methanol and 0.1ml of 20% by weight PEDOT:PSS solution, stir evenly, and record it as solution ①;

[0017] Mix and stir 0.4g cellulose acetate butyrate, 30ml isopropanol, and 10ml ethyl lactate, and record it as solution ②;

[0018] Using the kun coating method, coat a layer of solution with a film thickness of 50-200nm on PET ①, vacuum dry at 120 degrees for 2 hours, and then coat a layer of solution ② with a film thickness of 100-200nm on it, 120 and dry for 2 hours to obtain the silver nanowire transparent conductive film. The visible light (550nm) light transmittance of the silver nanowire transparent conductive film obtained in this example is 94%, and the sheet resistance is 50Ω / □.

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Abstract

The invention provides a preparation method of a composite Ag nano-wire transparent conductive film. Ag nano-wires are wrapped by a small number of conductive polymers and can be fully and uniformly dispersed, the contact resistance between the Ag nano-wires can be reduced, the Ag nano-wires are distributed on a base plate, and then the other polymers are used for solidification and flattening, so that the bonding firmness and the surface evenness of the Ag nano-wires and a substrate are improved, the light transmittance of the visible light (570nm) of the obtained Ag nano-wire transparent conductive film is 80-92 percent, and the square resistance is 40-120 omega / square. According to the preparation method of the composite Ag nano-wire transparent conductive film, the adhesion of the Ag nano-wires and the substrate is improved, the contact resistance is reduced, a production process of the Ag nano-wire transparent conductive film is further simplified, and the preparation method has a great practical application value and has a great application value in the field of transparent conductive electrodes.

Description

technical field [0001] The invention relates to a preparation method of Ag nanowire transparent conductive film, in particular to a preparation method of composite Ag nanowire transparent conductive film. Background technique [0002] Transparent conductive film is a kind of film that can conduct electricity and has high transparency in the visible light range, mainly including metal film system, oxide film system, polymer film system and so on. Among them, the silver nanowire transparent conductive film has received extensive attention and research because of the excellent chemical stability and excellent electrical conductivity of silver nanowires. For example, the Chinese patents whose application numbers are 200910112925.4 and 200910112924.X all disclose a method for preparing a transparent conductive film based on silver nanowires, which are all by first preparing a silver nanowire conductive layer, and then increasing the adhesion layer to improve the silver nanowire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14H01B13/00B82B1/00B82B3/00
Inventor 刘碧桃陈源金荣刘代军
Owner CHONGQING UNIV OF ARTS & SCI