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Modified silver nanowire transparent conductive film and method for enhancing electrical conductivity and oxidation resistance of silver nanowire transparent conductive film

A technology of transparent conductive film and silver nanowire, which is applied in the direction of equipment for manufacturing conductive/semiconductive layers, conductive layers on insulating carriers, circuits, etc. The poor stability of the wire conductive film and other problems can be achieved to improve the oxidation resistance, the surface resistance is small, and the effect of improving the conductivity

Inactive Publication Date: 2017-11-07
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This causes the silver nanowires with more active chemical properties to be easily oxidized in the air, thereby reducing the conductivity of the transparent film.
It can be seen that the large contact resistance between NW-NW and the poor stability of the silver nanowire conductive film itself are the main problems that affect the practical application of the silver nanowire transparent conductive film.

Method used

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  • Modified silver nanowire transparent conductive film and method for enhancing electrical conductivity and oxidation resistance of silver nanowire transparent conductive film
  • Modified silver nanowire transparent conductive film and method for enhancing electrical conductivity and oxidation resistance of silver nanowire transparent conductive film
  • Modified silver nanowire transparent conductive film and method for enhancing electrical conductivity and oxidation resistance of silver nanowire transparent conductive film

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Embodiment 1

[0033] This embodiment provides a modified silver nanowire transparent conductive film, which is prepared by the following method:

[0034] First, NaBH with ethanol-water as a mixed solvent 4 The solution carries out the first surface treatment to the silver nanowire transparent conductive film; Wherein, the first surface treatment is to make the silver nanowire transparent conductive film at a concentration of 0.4mol / LNaBH 4 Soak in the ethanol / water solution for 1s, and the ethanol / water solution is a solution with a volume ratio of ethanol to water of 2-3. After soaking, take out the transparent conductive film of silver nanowires and use ethanol and water to remove the residual NaBH successively. 4 Rinse well, then dry naturally or gently dry the transparent conductive film with nitrogen.

[0035] Secondly, the silver nanowire transparent conductive film that has undergone the first surface treatment is contacted with n-12 alkyl mercaptan and ethanol to perform the secon...

Embodiment 2

[0037] This embodiment provides a modified silver nanowire transparent conductive film, which is prepared by the following method. The difference between this method and the method provided in Example 1 is:

[0038] First, NaBH with ethanol-water as a mixed solvent 4 The solution carries out the first surface treatment to the silver nanowire transparent conductive film; Wherein, the first surface treatment is to make the silver nanowire transparent conductive film at a concentration of 0.5mol / LNaBH 4 Soak in the ethanol / water solution for 30s, and the ethanol / water solution is a solution with a volume ratio of ethanol to water of 1:1. After soaking, take out the transparent conductive film of silver nanowires and use ethanol and water to remove the residual NaBH successively. 4 Rinse well, then dry naturally or gently dry the transparent conductive film with nitrogen.

[0039] Secondly, the silver nanowire transparent conductive film that has undergone the first surface trea...

Embodiment 3

[0041] This embodiment provides a modified silver nanowire transparent conductive film, which is prepared by the following method. The difference between this method and the method provided in Example 1 is:

[0042] First, NaBH with ethanol-water as a mixed solvent 4 The solution carries out the first surface treatment to the silver nanowire transparent conductive film; Wherein, the first surface treatment is to make the silver nanowire transparent conductive film at a concentration of 0.6mol / LNaBH 4 Soak in the ethanol / water solution for 70s, and the ethanol / water solution is a solution with a volume ratio of ethanol to water of 3:2. After soaking, take out the transparent conductive film of silver nanowires and use ethanol and water to remove the residual NaBH successively. 4 Rinse well, then dry naturally or gently dry the transparent conductive film with nitrogen.

[0043] Secondly, the silver nanowire transparent conductive film that has undergone the first surface trea...

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Abstract

The invention provides a modified silver nanowire transparent conductive film and a method for improving the conductivity and oxidation resistance of the silver nanowire transparent conductive film, and relates to the technical field of flexible transparent conductive films. A modified silver nanowire transparent conductive film is prepared by the following method for improving the conductivity and oxidation resistance of the silver nanowire transparent conductive film: using ethanol-water as a mixed solvent of NaBH4 solution to the silver nanowire transparent conduction The first surface treatment is carried out on the film; the second surface treatment is carried out by contacting the silver nanowire transparent conductive film which has undergone the first surface treatment with a solution of n-alkylthiol. This method can effectively reduce the contact resistance between NW-NW and enhance the oxidation resistance of silver nanowires in air. The modified silver nanowire transparent conductive film has high light transmittance, good electrical conductivity, strong oxidation resistance and bending ability, and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of flexible transparent conductive films, and in particular to a modified silver nanowire transparent conductive film and a method for improving the conductivity and oxidation resistance of the silver nanowire transparent conductive film. Background technique [0002] Transparent electrodes refer to a type of electronic components that have both good electrical conductivity and light transmission. It is one of the essential components of photoelectric functional devices such as solar cells, displays, touch screens and light-emitting diodes, so it has received extensive attention. Indium tin oxide (ITO) transparent conductive film has high light transmittance (>85%) and low surface resistance (10ohm / sq), and has been applied commercially. However, it cannot be used in flexible, wearable electronics due to its fragility (resistance increases dramatically after bending or folding), high production cost, and...

Claims

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Application Information

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IPC IPC(8): H01B5/14H01B13/00
CPCH01B5/14H01B13/0026
Inventor 胡家文葛勇杰段曦东段镶锋
Owner HUNAN UNIV
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