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Preparation method of highly stable silver nanowire/graphene oxide composite transparent conductive film

A composite technology of transparent conductive film and graphene, which is applied to equipment for manufacturing conductive/semiconductive layers, cable/conductor manufacturing, circuits, etc., and can solve the problem of inability to prepare large-sized films, mass production, and process flow cumbersome and other problems, to achieve the effect of improving anti-oxidation performance, excellent thermal stability, and low energy consumption

Active Publication Date: 2020-11-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lee et al. (RSC Advances, 2016, 6(19), 15838-15845) used chemical vapor deposition (CVD) to deposit a layer of graphene film on copper foil, and then prepared AgNW / graphene with excellent performance by transfer. electrode, but using CVD to deposit graphene is expensive and energy-consuming, and the transfer process is cumbersome and cannot be mass-produced industrially; Wu et al. Prepare a thin layer of graphene oxide film, and then prepare AgNW / GO film by simple dip-coating method. The film prepared by this method has good stability, but the size of the GO film prepared by the self-assembly method is small and cannot Preparation of large size films

Method used

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  • Preparation method of highly stable silver nanowire/graphene oxide composite transparent conductive film

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1, a kind of preparation method of highly stable silver nanowire / graphene oxide composite transparent conductive film, carries out following steps successively:

[0045] 1), the preparation of silver nanowire ink and graphene oxide ink:

[0046]Using the AgNW dispersion as the precursor solution, HEC as the binder, Zonyl FSD (Zonyl@FSD) as the surfactant, and ethanol as the solvent, the above four were mixed and stirred at a speed of 100 rpm for 20 min to finally obtain silver Nanowire ink (AgNW ink);

[0047] The concentration of AgNW in the AgNW ink is 2 mg / mL, the concentration of HEC is 2.56 mg / mL, the concentration of Zonyl FSD is 0.05 mg / mL, and the rest is ethanol.

[0048] Using GO dispersion as the precursor solution, MC as the binder, FC-4430 as the surfactant, and deionized water as the solvent, mix the above four and stir at 150rpm for 25min to finally obtain graphene oxide ink (GO ink);

[0049] The GO concentration in the GO ink is 0.1 mg / mL,...

Embodiment 2

[0058] Embodiment 2, a kind of preparation method of highly stable silver nanowire / graphene oxide composite transparent conductive film, carries out following steps successively:

[0059] 1), the preparation of silver nanowire ink and graphene oxide ink:

[0060] The AgNW dispersion was used as a precursor solution, PAC was used as a binder, Zonyl TBS was used as a surfactant, and acetone was used as a solvent to mix the above 4, and the above 4 were mixed and stirred at a rate of 120rpm for 25min to finally obtain the silver nanowire ink ( AgNW ink);

[0061] The AgNW concentration in the AgNW ink is 3 mg / mL, the PAC concentration is 4.5 mg / mL, the Zonyl TBS concentration is 0.1 mg / mL, and the rest is acetone.

[0062] Using GO dispersion as the precursor solution, cellulose alkyl ether as the binder, Zonyl FSE as the surfactant, and ethylene glycol as the solvent, mix the above four and stir at 100rpm for 25min to finally get Graphene oxide ink (GO ink);

[0063] The GO c...

Embodiment 3

[0072] Embodiment 3, a kind of preparation method of highly stable silver nanowire / graphene oxide composite transparent conductive film, carries out following steps successively:

[0073] 1), the preparation of silver nanowire ink and graphene oxide ink:

[0074] Using the AgNW dispersion as the precursor solution, MC as the binder, FC-4430 as the surfactant, and acetone as the solvent, mix the above 4 components and stir at 150rpm for 30min to finally obtain the silver nanowire ink (AgNW ink);

[0075] The AgNW concentration in the AgNW ink is 3.5mg / mL, the MC concentration is 4.5mg / mL, the FC-4430 concentration is 0.1mg / mL, and the rest is acetone.

[0076] Using GO dispersion as precursor solution, cellulose hydroxyalkyl ether as binder, Zonyl FSE as surfactant, and ethylene glycol as solvent, the above 4 were mixed and stirred at a speed of 120rpm for 25min. Finally, graphene oxide ink (GO ink) is obtained;

[0077] The concentration of GO in the GO ink is 0.3 mg / mL, th...

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Abstract

The invention discloses a preparation method of a high-stability silver nanowire / graphene oxide composite transparent conductive film. The preparation method comprises the following steps of: preparing argentum nanowire ink (AgNW ink) and graphene oxide ink (GO ink), cleaning a substrate to obtain a pretreated substrate, applying the AgNW ink to a pretreated substrate, and curing to form an AgNW film, applying the GO ink on the AgNW film, and then curing to form an AgNW / GO composite film, and finally, carrying out heat treatment to form the AgNW / GO composite transparent conductive film. By adopting the method provided by the invention, the film has excellent oxidation resistance on the premise of keeping good photoelectric properties.

Description

technical field [0001] The invention relates to the field of transparent electrode materials, in particular to the preparation of a highly stable silver nanowire / graphene oxide composite transparent conductive film by a solution method. Background technique [0002] ITO (indium tin oxide) is often used as the anode of optical devices such as OLEDs, solar cells, and flat panel displays, and occupies a large market share. Indium tin oxide (ITO) is made by doping Sn into In 2 o 3 The n-type semiconductors formed in these materials are usually used as transparent electrodes in OLED devices, which have high visible light transmittance and high electrical conductivity. However, indium is a rare element in the earth's crust, and ITO is brittle, prone to cracks and resulting in failure, which greatly limits its application in the field of flexible electronics. Thinking that ITO has many shortcomings, researchers are committed to developing the second generation of flexible transp...

Claims

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Application Information

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IPC IPC(8): H01B13/00H01B13/30
CPCH01B13/00H01B13/0026H01B13/30
Inventor 郭兴忠张燕白盛池陈天锐杨辉
Owner ZHEJIANG UNIV