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Graphene composite film and its preparation method and application

A technology of graphene composite and graphene film, which is applied to equipment for manufacturing conductive/semiconductive layers, cable/conductor manufacturing, instruments, etc., can solve the problem of thick composite film, complex production process, graphene and nano-silver Problems such as poor line adhesion

Active Publication Date: 2020-08-11
WUXI GRAPHENE FILM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are defects such as complicated manufacturing process, high cost, and thick composite film.
In addition, the adhesion between graphene and silver nanowires is poor, and there are certain hidden dangers in the stability of the composite transparent conductive film in subsequent applications.

Method used

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  • Graphene composite film and its preparation method and application
  • Graphene composite film and its preparation method and application
  • Graphene composite film and its preparation method and application

Examples

Experimental program
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preparation example Construction

[0058] In one embodiment of the present invention, a kind of preparation method of graphene composite film is provided, comprising:

[0059] Bonding the graphene on the substrate to the transfer matrix to obtain the transfer matrix / graphene / substrate;

[0060] introducing a first dopant on the surface of the graphene while removing the substrate on the transfer matrix / graphene / substrate to obtain a transfer matrix / graphene doped with the first dopant;

[0061] Bonding the graphene on the transfer base / graphene doped with the first dopant to the first target base, and removing the transfer base to obtain the graphene / first target doped with the first dopant matrix.

[0062] According to a preferred embodiment of the present invention, the method for preparing the above-mentioned graphene composite film further includes bonding the second target substrate on the graphene side doped with the first dopant / the graphene of the first target substrate.

[0063] According to a prefer...

Embodiment 1

[0101] Preparation of graphene composite film:

[0102] After the graphene is grown on the copper foil by the conventional vapor deposition method, the copper foil with the graphene is expanded to obtain the copper foil / graphene; The adhesive side of the silicone protective film is bonded together to form a structure of PET silicone protective film / graphene / copper foil, and the peeling force of the PET silicone protective film is 8g / 25mm; the preparation of benzotriazole / hydrochloric acid / hydrogen peroxide mixed Mixed etching solution, put the PET silica gel protective film / graphene / copper foil in the mixed solution to etch doping, after the copper foil is completely removed, wash and air-dry with deionized water to obtain the PET silica gel protective film / graphene. The side of the graphene in the PET silica gel protective film / graphene is bonded to the PET by rapid rolling; the PET silica gel protective film is torn off to obtain a composite structure doped with graphene / PET...

Embodiment 2

[0104] Preparation of graphene composite film:

[0105] After the graphene is grown on the copper foil by the conventional vapor deposition method, the copper foil with the graphene is expanded to obtain the copper foil / graphene; The adhesive side of the silicone protective film is bonded together to form a structure of PET silicone protective film / graphene / copper foil, and the peeling force of the PET silicone protective film is 15g / 25mm; prepare imidazole / ammonium persulfate doped etching solution , put the PET silica gel protective film / graphene / copper foil in the mixed solution for etching and doping, after the copper foil is completely removed, wash and air-dry with deionized water to obtain the PET silica gel protective film / graphene. The side of the graphene in the PET silica gel protective film / graphene is bonded to the PET by rapid rolling; the PET silica gel protective film is torn off to obtain a composite structure doped with graphene / PET, and the first doping is c...

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Abstract

The invention provides a graphene composite film and a preparation method thereof. The preparation method of the graphene composite film comprises the steps of enabling the graphene on a substrate tobe attached to a transfer matrix to obtain a transfer matrix / graphene / substrate; removing the substrate on the transfer matrix / graphene / substrate and introducing a first doping agent at the surface ofthe graphene at the same time so as to obtain transfer matrix / graphene doped with the first doping agent; enabling the graphene on the transfer matrix / graphene doped with the first doping agent to beattached to a first target matrix and removing the transfer matrix so as to obtain graphene doped with the first doping agent / first target matrix. The invention further provides a graphene sensor which is prepared by adopting the graphene composite film.

Description

technical field [0001] The invention belongs to the field of transparent conductive thin film materials, in particular to a graphene composite thin film material and its preparation method and application. Background technique [0002] Graphene, as a two-dimensional carbon material with a unique energy band structure, has high transmittance and good conductivity at the same time, and can be used as a transparent conductive material. There are many methods for preparing graphene, among which chemical vapor deposition is one of the main methods to achieve mass production of transparent conductive materials. The chemical vapor deposition method mainly uses transition metals and alloys as catalysts and supports for graphene growth, and then grows large-area, high-quality, and controllable layer graphene. However, due to the multi-domain characteristics of graphene prepared by CVD method and the low intrinsic carrier concentration of graphene, the square resistance of graphene t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B5/14H01B13/00G06F3/044
CPCG06F3/044H01B5/14H01B13/0026
Inventor 张娟娟郭成坤秦喜超
Owner WUXI GRAPHENE FILM