Ultrafast Epitaxial Growth of Metre-Sized Single-Crystal Graphene

ORAL

Abstract

Graphene single crystal has become a promising material for next generation electronics and optoelectronics. In this talk I will introduce why we need to grow graphene faster and how fast we can achieve in our recently developed new technology. We present here the growth, in 20 min, of a graphene film of (5 × 50) cm2 dimension with >99% ultra-highly oriented grains. This growth was achieved by: (1) synthesis of metre-sized single-crystal Cu(111) foil as substrate; (2) epitaxial growth of graphene islands on the Cu(111) surface; (3) seamless merging of such graphene islands into a graphene film with high single crystallinity and (4) the ultrafast growth of graphene film. These achievements were realized by a temperature-gradient-driven annealing technique to produce single-crystal Cu(111) from industrial polycrystalline Cu foil and the marvelous effects of a continuous oxygen supply from an adjacent oxide. The as-synthesized graphene film, with very few misoriented grains (if any), has a mobility up to ~ 23,000 cm2 V-1 s-1 at 4 K and room temperature sheet resistance of 230 Ω/square. It is likely that this approach can be scaled up to achieve exceptionally large and high-quality graphene with single crystallinity, and thus realize various industrial-level applications at low cost.

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Presenters

  • Dapeng Yu

    • State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University

Authors

  • Xiaozhi Xu

    • Peking Univ
    • State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University

  • Zhihong Zhang

    • State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University
    • Peking University

  • Jichen Dong

    • Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS)

  • Ding Yi

    • Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS)

  • Li Lin

    • Center for Nanochemistry, College of Chemistry and Molecular Engineering, Peking University

  • Jingjing Niu

    • State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University

  • Muhong Wu

    • State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University

  • Rongkang Yin

    • Department of Biomedical Engineering, Peking University

  • Mingqiang Li

    • State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University

  • Jingyuan Zhou

    • Center for Nanochemistry, College of Chemistry and Molecular Engineering, Peking University

  • Shaoxin Wang

    • State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University

  • Junliang Sun

    • College of Chemistry and Molecular Engineering, Peking University

  • Xiaojie Duan

    • Center for Nanochemistry, College of Chemistry and Molecular Engineering, Peking University

  • Peng Gao

    • State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University

  • Ying Jiang

    • Peking Univ
    • Collaborative Innovation Center of Quantum Matters
    • School of Physics, Peking University
    • Department of Physics, Peking Univ

  • Xiaosong Wu

    • State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University
    • Peking University

  • Hailin Peng

    • Center for Nanochemistry, College of Chemistry and Molecular Engineering, Peking University
    • Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University
    • Peking University

  • Rodney S. Ruoff

    • Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS)
    • IBS Center for Multidimensional Carbon Materials and the Ulsan National Institute of Science and Technology

  • Zhongfan Liu

    • Center for Nanochemistry, College of Chemistry and Molecular Engineering, Peking University

  • Dapeng Yu

    • State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University

  • Enge Wang

    • Peking Univ
    • Collaborative Innovation Center of Quantum Matters

  • Feng Ding

    • Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS)

  • Kaihui Liu

    • Peking University
    • Peking Univ
    • State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University