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Transparent conductive film and preparation method thereof

A technology of a transparent conductive film and a transparent substrate, applied in the field of electronics, can solve the problems of uneven conduction of metal nanowire films and easy changes in electrical conductivity, and achieve the effects of high stability, weakened oxidation, and good conduction uniformity.

Inactive Publication Date: 2014-12-24
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 conductivity of the metal nanowire film itself is not uniform and the conductivity of the metal nanowire is easily changed when the metal nanowire is stored in the air, heated and applied with an electric current, so as to enhance the conductivity uniformity of the transparent conductive film and make the transparent conductive film transparent. The conductive film has higher stability when stored in a water-oxygen environment, heated and applied with current

Method used

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  • Transparent conductive film and preparation method thereof
  • Transparent conductive film and preparation method thereof
  • Transparent conductive film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Complete the preparation of the transparent conductive film 2 through the following specific steps:

[0038] 1) Cleaning the glass substrate 1 with deionized water, acetone solution and isopropanol, drying it with dry nitrogen after cleaning, and treating the substrate surface with oxygen plasma or ultraviolet light / ozone;

[0039] 2) preparing a silver nanowire dispersion, the silver nanowire has a diameter of 40nm and a length of 200 μm, the solvent in the silver nanowire dispersion is ethanol, and the concentration of the silver nanowire in the solvent is 3mg / ml;

[0040] 3) forming a silver nanowire layer 21 on the transparent substrate 1 by spin coating;

[0041] 4) Form a conductive polymer layer 22 on the silver nanowire layer 21 by spin coating, and the conductive polymer is PEDOT:PSS with a neutral pH value;

[0042] 5) Transfer the transparent substrate 1 containing the silver nanowire layer 21 and the conductive polymer layer 22 to a heating table, and dry t...

Embodiment 2

[0044] Complete the preparation of the transparent conductive film 2 through the following specific steps:

[0045]1) Clean the polyethylene terephthalate (PET) flexible transparent substrate 1 with deionized water, acetone solution and isopropanol, blow it dry with dry nitrogen after cleaning, and use oxygen plasma or ultraviolet light / Ozone treatment of the substrate surface;

[0046] 2) preparing a copper nanowire dispersion, the copper nanowire has a diameter of 100 nm and a length of 100 μm, the solvent in the copper nanowire dispersion is methanol, and the concentration of the copper nanowire in the solvent is 2 mg / ml;

[0047] 3) forming a copper nanowire layer 21 on the transparent substrate 1 by scraping;

[0048] 4) Form a conductive polymer layer 22 on the copper nanowire layer 21 by spin coating, and the conductive polymer is PEDOT:PSS with a neutral pH value;

[0049] 5) Transfer the transparent substrate 1 containing the copper nanowire layer 21 and the condu...

Embodiment 3

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

[0052] 1) Clean the polyethylene naphthalate (PEN) flexible transparent substrate 1 with deionized water, acetone solution and isopropanol, blow it dry with dry nitrogen after cleaning, and use oxygen plasma or ultraviolet light / Ozone treatment of the substrate surface;

[0053] 2) Prepare copper nanowire dispersion, the diameter of the copper nanowire is 200nm, the length is 30 μm, the solvent in the copper nanowire dispersion is methanol, and the concentration of the copper nanowire in the solvent is 0.1mg / ml ;

[0054] 3) Forming a copper nanowire layer 21 on the transparent substrate 1 by spraying;

[0055] 4) A conductive polymer layer 22 is formed on the copper nanowire layer 21 by scraping, and the conductive polymer is PEDOT:PSS with a neutral pH value;

[0056] 5) Transfer the transparent substrate 1 containing the copper nanowire layer 21 and the conductiv...

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Abstract

The invention discloses a transparent conductive film and a preparation method thereof. The transparent conductive film covers a transparent substrate and is a blend system of metal nano-wires and conducting polymer or is a combination layer of a metal nano-wire layer and a conducting polymer layer from bottom to top sequentially. The metal nano-wires include gold, silver, copper and nickel nano-wires; the conducting polymer refers to poly (3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) with neutral pH value. Conducting uniformity of the metal nano-wire film is improved, and the transparent conductive film has high stability when being stored, heated and applied with current in a water-oxygen environment.

Description

technical field [0001] The present invention relates to an electronic device, in particular to a transparent conductive film based on silver nanowire / pH neutral poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) and its preparation The method belongs to the field of electronic technology. 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 ...

Claims

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Application Information

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IPC IPC(8): H01B5/14H01B13/00
Inventor 郭小军陈苏杰邵宪一黄珏坤
Owner SHANGHAI JIAO TONG UNIV
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