Transfer of Large-Area Graphene Films for High-Performance Transparent Conductive Electrodes

TLDR

Graphene’s unique transport properties and high optical transmittance make it a promising material for transparent conductive electrodes. The study aims to develop an improved transfer process for large‑area graphene grown on copper foils by chemical vapor deposition. The authors refine the transfer technique applied to CVD‑grown graphene on Cu substrates. The resulting graphene films exhibit high electrical conductivity and optical transmittance, making them suitable for transparent conductive electrodes and enabling fabrication of devices such as field‑effect transistors and bilayer pseudospin FETs.

Abstract

Graphene, a two-dimensional monolayer of sp2-bonded carbon atoms, has been attracting great interest due to its unique transport properties. One of the promising applications of graphene is as a transparent conductive electrode owing to its high optical transmittance and conductivity. In this paper, we report on an improved transfer process of large-area graphene grown on Cu foils by chemical vapor deposition. The transferred graphene films have high electrical conductivity and high optical transmittance that make them suitable for transparent conductive electrode applications. The improved transfer processes will also be of great value for the fabrication of electronic devices such as field effect transistor and bilayer pseudospin field effect transistor devices.