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Towards super-clean graphene

Author

Listed:
  • Li Lin

    (Peking University)

  • Jincan Zhang

    (Peking University
    Peking University)

  • Haisheng Su

    (Xiamen University)

  • Jiayu Li

    (Peking University
    Peking University
    China Fortune Land Development Industrial Investment Co., Ltd Beijing)

  • Luzhao Sun

    (Peking University
    Peking University)

  • Zihao Wang

    (University of Manchester)

  • Fan Xu

    (Xiamen University)

  • Chang Liu

    (Xiamen University)

  • Sergei Lopatin

    (King Abdullah University of Science and Technology)

  • Yihan Zhu

    (King Abdullah University of Science and Technology)

  • Kaicheng Jia

    (Peking University)

  • Shulin Chen

    (Peking University)

  • Dingran Rui

    (Peking University)

  • Jingyu Sun

    (Soochow University
    Soochow University)

  • Ruiwen Xue

    (Department of Chemical and Biomolecular Engineering Hong Kong University of Science and Technology Clear Water Bay)

  • Peng Gao

    (Collaborative Innovation Center of Quantum Matter)

  • Ning Kang

    (Peking University)

  • Yu Han

    (King Abdullah University of Science and Technology)

  • H. Q. Xu

    (Peking University)

  • Yang Cao

    (Xiamen University)

  • K. S. Novoselov

    (University of Manchester)

  • Zhongqun Tian

    (Xiamen University)

  • Bin Ren

    (Xiamen University)

  • Hailin Peng

    (Peking University
    Beijing Graphene Institute)

  • Zhongfan Liu

    (Peking University
    Beijing Graphene Institute)

Abstract

Impurities produced during the synthesis process of a material pose detrimental impacts upon the intrinsic properties and device performances of the as-obtained product. This effect is especially pronounced in graphene, where surface contamination has long been a critical, unresolved issue, given graphene’s two-dimensionality. Here we report the origins of surface contamination of graphene, which is primarily rooted in chemical vapour deposition production at elevated temperatures, rather than during transfer and storage. In turn, we demonstrate a design of Cu substrate architecture towards the scalable production of super-clean graphene (>99% clean regions). The readily available, super-clean graphene sheets contribute to an enhancement in the optical transparency and thermal conductivity, an exceptionally lower-level of electrical contact resistance and intrinsically hydrophilic nature. This work not only opens up frontiers for graphene growth but also provides exciting opportunities for the utilization of as-obtained super-clean graphene films for advanced applications.

Suggested Citation

  • Li Lin & Jincan Zhang & Haisheng Su & Jiayu Li & Luzhao Sun & Zihao Wang & Fan Xu & Chang Liu & Sergei Lopatin & Yihan Zhu & Kaicheng Jia & Shulin Chen & Dingran Rui & Jingyu Sun & Ruiwen Xue & Peng G, 2019. "Towards super-clean graphene," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09565-4
    DOI: 10.1038/s41467-019-09565-4
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    Cited by:

    1. Yixuan Zhao & Yuqing Song & Zhaoning Hu & Wendong Wang & Zhenghua Chang & Yan Zhang & Qi Lu & Haotian Wu & Junhao Liao & Wentao Zou & Xin Gao & Kaicheng Jia & La Zhuo & Jingyi Hu & Qin Xie & Rui Zhang, 2022. "Large-area transfer of two-dimensional materials free of cracks, contamination and wrinkles via controllable conformal contact," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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