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Atomically defined angstrom-scale all-carbon junctions

Author

Listed:
  • Zhibing Tan

    (Xiamen University)

  • Dan Zhang

    (Xiamen University)

  • Han-Rui Tian

    (Xiamen University)

  • Qingqing Wu

    (Lancaster University)

  • Songjun Hou

    (Lancaster University)

  • Jiuchan Pi

    (Xiamen University)

  • Hatef Sadeghi

    (Lancaster University)

  • Zheng Tang

    (Xiamen University)

  • Yang Yang

    (Xiamen University)

  • Junyang Liu

    (Xiamen University)

  • Yuan-Zhi Tan

    (Xiamen University)

  • Zhao-Bin Chen

    (Xiamen University)

  • Jia Shi

    (Xiamen University)

  • Zongyuan Xiao

    (Xiamen University
    Xiamen University)

  • Colin Lambert

    (Lancaster University)

  • Su-Yuan Xie

    (Xiamen University)

  • Wenjing Hong

    (Xiamen University
    Xiamen University)

Abstract

Full-carbon electronics at the scale of several angstroms is an expeimental challenge, which could be overcome by exploiting the versatility of carbon allotropes. Here, we investigate charge transport through graphene/single-fullerene/graphene hybrid junctions using a single-molecule manipulation technique. Such sub-nanoscale electronic junctions can be tuned by band gap engineering as exemplified by various pristine fullerenes such as C60, C70, C76 and C90. In addition, we demonstrate further control of charge transport by breaking the conjugation of their π systems which lowers their conductance, and via heteroatom doping of fullerene, which introduces transport resonances and increase their conductance. Supported by our combined density functional theory (DFT) calculations, a promising future of tunable full-carbon electronics based on numerous sub-nanoscale fullerenes in the large family of carbon allotropes is anticipated.

Suggested Citation

  • Zhibing Tan & Dan Zhang & Han-Rui Tian & Qingqing Wu & Songjun Hou & Jiuchan Pi & Hatef Sadeghi & Zheng Tang & Yang Yang & Junyang Liu & Yuan-Zhi Tan & Zhao-Bin Chen & Jia Shi & Zongyuan Xiao & Colin , 2019. "Atomically defined angstrom-scale all-carbon junctions," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09793-8
    DOI: 10.1038/s41467-019-09793-8
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