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Fast synthesis of large-area bilayer graphene film on Cu.

Published version
Peer-reviewed

Repository DOI


Type

Article

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Authors

Zhang, Jincan 
Liu, Xiaoting 
Zhang, Mengqi 
Zhang, Rui 
Ta, Huy Q 

Abstract

Bilayer graphene (BLG) is intriguing for its unique properties and potential applications in electronics, photonics, and mechanics. However, the chemical vapor deposition synthesis of large-area high-quality bilayer graphene on Cu is suffering from a low growth rate and limited bilayer coverage. Herein, we demonstrate the fast synthesis of meter-sized bilayer graphene film on commercial polycrystalline Cu foils by introducing trace CO2 during high-temperature growth. Continuous bilayer graphene with a high ratio of AB-stacking structure can be obtained within 20 min, which exhibits enhanced mechanical strength, uniform transmittance, and low sheet resistance in large area. Moreover, 96 and 100% AB-stacking structures were achieved in bilayer graphene grown on single-crystal Cu(111) foil and ultraflat single-crystal Cu(111)/sapphire substrates, respectively. The AB-stacking bilayer graphene exhibits tunable bandgap and performs well in photodetection. This work provides important insights into the growth mechanism and the mass production of large-area high-quality BLG on Cu.

Description

Keywords

51 Physical Sciences, 40 Engineering, 4018 Nanotechnology, 5104 Condensed Matter Physics

Journal Title

Nat Commun

Conference Name

Journal ISSN

2041-1723
2041-1723

Volume Title

14

Publisher

Springer Science and Business Media LLC
Sponsorship
National Natural Science Foundation of China (National Science Foundation of China) (51520105003)