Nature Communications (Jun 2023)

Fast synthesis of large-area bilayer graphene film on Cu

  • Jincan Zhang,
  • Xiaoting Liu,
  • Mengqi Zhang,
  • Rui Zhang,
  • Huy Q. Ta,
  • Jianbo Sun,
  • Wendong Wang,
  • Wenqing Zhu,
  • Tiantian Fang,
  • Kaicheng Jia,
  • Xiucai Sun,
  • Xintong Zhang,
  • Yeshu Zhu,
  • Jiaxin Shao,
  • Yuchen Liu,
  • Xin Gao,
  • Qian Yang,
  • Luzhao Sun,
  • Qin Li,
  • Fushun Liang,
  • Heng Chen,
  • Liming Zheng,
  • Fuyi Wang,
  • Wanjian Yin,
  • Xiaoding Wei,
  • Jianbo Yin,
  • Thomas Gemming,
  • Mark. H. Rummeli,
  • Haihui Liu,
  • Hailin Peng,
  • Li Lin,
  • Zhongfan Liu

DOI
https://doi.org/10.1038/s41467-023-38877-9
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 9

Abstract

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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.