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Transparent conducting thin film and preparation method thereof

A technology of transparent conductive film and transparent substrate, applied in the field of electronics, can solve the problems of low square resistance, graphene film cannot have high visible light transmittance at the same time, etc., achieve low square resistance, high visible light transmittance, reduce cost effect

Inactive Publication Date: 2013-02-20
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the graphene film cannot have high visible light transmittance and low square resistance at the same time, and provide a transparent conductive film and its preparation method, so that the transparent conductive film can ensure high visible light while reducing the square resistance. Transmittance

Method used

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  • Transparent conducting thin film and preparation method thereof
  • Transparent conducting thin film and preparation method thereof
  • Transparent conducting thin film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Complete the preparation of the transparent conductive film 2 through the following specific steps:

[0046] 1) cleaning the transparent substrate 1 of the glass, and drying it with dry nitrogen after cleaning;

[0047] 2) A silver nanowire layer 21 is formed on the transparent substrate 1 by drop coating, the silver nanowire has a diameter of 40 nm and a length of 100 μm, and its density on the transparent substrate 1 is 0.005 mg / cm 2 ;

[0048] 3) adopt chemical vapor deposition (CVD) to form graphene sheet, and this graphene sheet is single-layer graphene;

[0049] 4) transfer the graphene sheet to the silver nanowire layer 21 by a dry method to form a graphene sheet 22, thereby preparing a composite layer consisting of the graphene sheet 22 and the silver nanowire layer 21 on the transparent substrate 1 transparent conductive film 2.

Embodiment 2

[0051] Complete the preparation of the transparent conductive film 2 through the following specific steps:

[0052] 1) Clean the flexible transparent substrate 1 of polyethylene terephthalate (PET), and dry it with dry nitrogen after cleaning;

[0053] 2) A silver nanowire layer 21 is formed on the transparent substrate 1 by scraping, the silver nanowire has a diameter of 60 nm and a length of 200 μm, and its density on the transparent substrate 1 is 0.0015 mg / cm 2 ;

[0054] 3) Graphene sheets are formed by graphene oxide after reduction, and the graphene sheets are double-layer graphene;

[0055] 4) Form a graphene sheet 22 on the silver nanowire layer 21 by spin coating, thereby preparing a transparent conductive film made of a combination layer of the graphene sheet 22 and the silver nanowire layer 21 on the transparent substrate 1 2.

Embodiment 3

[0057]Complete the preparation of the transparent conductive film 2 through the following specific steps:

[0058] 1) Clean the flexible transparent substrate 1 of polyethylene naphthalate (PEN), and dry it with dry nitrogen after cleaning;

[0059] 2) adopt chemical vapor deposition (CVD) to form graphene sheet, and this graphene sheet is bilayer graphene;

[0060] 3) transfer the graphene sheet to the transparent substrate 1 by a wet method to form a graphene sheet 22;

[0061] 4) A silver nanowire layer 21 is formed on the graphene sheet 22 by spraying, the silver nanowire has a diameter of 60 nm and a length of 80 μm, and its density on the transparent substrate 1 is 0.005 mg / cm 2 , so that a transparent conductive film 2 composed of a combined layer of graphene sheet layer 22 and silver nanowire layer 21 is prepared on the transparent substrate 1 .

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Abstract

The invention discloses a transparent conducting thin film and a preparation method thereof. The transparent conducting thin film is located on a transparent substrate and comprises a graphene sheet and a silver nanowire, the transparent conducting thin film is a combined layer formed by a graphene sheet layer and a silver nanowire layer, or the transparent conducting thin film is formed by blending the graphene sheet and the silver nanowire. The transparent conducting thin film and the preparation method thereof have the advantages that the visible light transmittance is high, the square resistance is low, the complexity of the preparation process is reduced, and the production cost is lowered.

Description

technical field [0001] The invention relates to an electronic device, in particular to a graphene / silver nanowire-based transparent conductive film and a preparation method thereof, belonging to the technical field of electronics. Background technique [0002] Transparent conductive films are an important part of electronic information products. The general requirements for transparent conductive films are that the sheet resistance should be as low as possible, and the light transmittance in the visible light range should be as high as possible. At the same time, as a commercial product, the production cost should be as low as possible. [0003] Since In 2 o 3 :SnO 2 (ITO) has the characteristics of high visible light transmittance and low resistance. ITO is mostly used as an electrode in current optoelectronic devices, but it has the following disadvantages: (1) Indium in ITO is highly toxic, and it is harmful to the human body during preparation and application. Harmfu...

Claims

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Application Information

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IPC IPC(8): H01B5/14H01B13/00H01B1/02H01B1/04
Inventor 陈苏杰唐伟冯林润郭小军
Owner SHANGHAI JIAO TONG UNIV
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