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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Fabrication of Graphene/Cu Composite by Chemical Vapor Deposition and Effects of Graphene Layers on Resultant Electrical Conductivity
Author NameAffiliationPostcode
Xinyue Liu* Department of Electrical Engineering,Southwest Jiaotong University 610031
Yaling Huang Department of Electrical Engineering,Southwest Jiaotong University 610031
Yuyao Li Department of Electrical Engineering,Southwest Jiaotong University 610031
Jie Liu Department of Electrical Engineering,Southwest Jiaotong University 610031
Quanfang Chen Department of Electrical Engineering,Southwest Jiaotong University 610031
Abstract:
Graphene (Gr) has unique properties including high electrical conductivity; thus, graphene/copper (Gr/Cu) composites have attracted increasing attention to replace traditional Cu for electrical applications. However, the problem of how to control graphene to form desired Gr/Cu composite is not well solved. This paper aims at exploring the best parameters for preparing graphene with different layers on Cu foil by chemical vapor deposition (CVD) method and studying the effects of different layers graphene on Gr/Cu composite’s electrical conductivity. Graphene grown on single-sided and double-sided copper was prepared for Gr/Cu and Gr/Cu/Gr composites. The resultant electrical conductivity of Gr/Cu composites increased with decreasing graphene layers and increasing graphene volume fraction. The Gr/Cu/Gr composite with monolayer graphene owns volume fraction of less than 0.002%, producing the best electrical conductivity up to 59.8 ×106 S.m-1, equivalent to 104.5% IACS and 105.3% pure Cu foil.
Key words:  chemical vapor deposition (CVD)  Gr/Cu  Gr/Cu/Gr  graphene layers  graphene volume fraction  electrical conductivity
DOI：10.11916/j.issn.1005-9113.2023003
Clc Number:TB333
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