Single-molecule electric revolving door

Liang Yan Hsu, Elise Y. Li, Herschel Rabitz

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

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
Volume13
Issue number11
DOIs
Publication statusPublished - 2013 Nov 13

Fingerprint

Molecules
molecules
Density functional theory
Conformations
simulation
Electric fields
density functional theory
formalism
interference
electric fields
electrons
Electron Transport

Keywords

  • 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

Cite this

Single-molecule electric revolving door. / Hsu, Liang Yan; Li, Elise Y.; Rabitz, Herschel.

In: Nano Letters, Vol. 13, No. 11, 13.11.2013, p. 5020-5025.

Research output: Contribution to journalArticle

Hsu, LY, Li, EY & Rabitz, H 2013, 'Single-molecule electric revolving door', Nano Letters, vol. 13, no. 11, pp. 5020-5025. https://doi.org/10.1021/nl401340c
Hsu, Liang Yan ; Li, Elise Y. ; Rabitz, Herschel. / Single-molecule electric revolving door. In: Nano Letters. 2013 ; Vol. 13, No. 11. pp. 5020-5025.
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