In-situ compounded metal mesh graphene compound function film and preparation method thereof

Abstract

The invention relates to an in-situ compounded metal mesh graphene compound function film and a preparation method thereof. The preparation method comprises the steps of growth of graphene layers, bonding of substrates and molding of composite films; gridding metal foils and multiple graphene layers on the surfaces of the metal foils are molded; and the graphene layers grow on the surfaces of themetal foils by adopting a chemical vapor deposition method. The preparation method has the following beneficial effects: the defect of weak interface bonding performance between graphene and metal meshes in traditional compound function films is eliminated; the bonding firmness of the graphene layers and the metal meshes is improved; the electric contact is excellent; the comprehensive performanceis improved; in addition, due to mature etching process, the continuity of the graphene layers cannot be damaged in the etching process, so that the yield is high; and finally, through in-situ compound technology, the preparation flow is simplified, and the preparation efficiency of the metal mesh graphene compound film is improved.

Description

technical field [0001] The invention relates to the technical field of graphene composite materials, in particular to an in-situ composite metal grid graphene composite functional film and a preparation method thereof. Background technique [0002] Metal grid film has become a functional film because of its high light transmittance and strong electromagnetic shielding efficiency in a wide range from near-infrared to visible light, flexible adjustment of material and structural parameters according to the use environment, and strong designability of performance. One of the most eye-catching films. In the metal grid structure, the metal grid lines realize the transmission of current, and the width and thickness of the lines determine the conductivity of the metal grid; the hollow part realizes the transmission of light, and the ratio of the area occupied by the metal to the total area of ​​the film determines the metal grid. Grid transmittance. [0003] Graphene is a carbon ...

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention provides an in-situ composite metal grid graphene composite functional film, and the metal grid graphene composite functional film is prepared by directly selectively etching the metal foil with graphene grown on the surface , which solves the problems of poor bonding force, large contact resistance, and difficulty in performance improvement after the graphene film is bonded to the metal grid in the prior art, and has the effects of firm bonding, excellent electrical contact, and performance improvement.

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