Single-molecule electric revolving door

Liang Yan Hsu, Elise Y. Li, Herschel Rabitz

Research output: Contribution to journalArticle

22 Citations (Scopus)


This work proposes a new type of molecular machine, the single-molecule electric revolving door, which utilizes conductance dependence upon molecular conformation as well as destructive quantum interference. We perform electron transport simulations in the zero-bias limit using the Landauer formalism together with density functional theory. The simulations show that the open- and closed-door states, accompanied by significant conductance variation, can be operated by an external electric field. The large on-off conductance ratio (∼105) implies that the molecular machine can also serve as an effective switching device. The simultaneous control and detection of the door states can function at the nanosecond scale, thereby offering a new capability for molecular-scale devices.

Original languageEnglish
Pages (from-to)5020-5025
Number of pages6
JournalNano Letters
Issue number11
Publication statusPublished - 2013 Nov 13


  • Molecular machine
  • conductance
  • density-functional theory
  • molecular electronics
  • molecular switch
  • quantum transport

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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