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Atomically defined angstrom-scale all-carbon junctions

Research output: Contribution to journalJournal article

  • Z. Tan
  • D. Zhang
  • H.-R. Tian
  • Q. Wu
  • S. Hou
  • J. Pi
  • H. Sadeghi
  • Z. Tang
  • Y. Yang
  • J. Liu
  • Y.-Z. Tan
  • Z.-B. Chen
  • J. Shi
  • Z. Xiao
  • C. Lambert
  • S.-Y. Xie
  • W. Hong
Article number1748
<mark>Journal publication date</mark>15/04/2019
<mark>Journal</mark>Nature Communications
Issue number1
Number of pages7
Pages (from-to)1748
Publication statusPublished
Original languageEnglish


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 C 60, C 70, C 76 and C 90. 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.