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Highly-effective gating of single-molecule junctions: an electrochemical approach

Research output: Contribution to journalJournal article

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  • Masoud Baghernejad
  • David Zsolt Manrique
  • Chen Li
  • Thomas Pope
  • Ulmas Zhumaev
  • Ilya Pobelov
  • Pavel Moreno-Garcia
  • Veerabhadrarao Kaliginedi
  • Cancan Huang
  • Wenjing Hong
  • Colin Lambert
  • Thomas Wandlowski
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<mark>Journal publication date</mark>28/12/2014
<mark>Journal</mark>Chemical Communications
Issue number100
Volume50
Number of pages4
Pages (from-to)15975-15978
Publication statusPublished
Early online date4/11/14
Original languageEnglish

Abstract

We report an electrochemical gating approach with similar to 100% efficiency to tune the conductance of single-molecule 4,40' bipyridine junctions using scanning-tunnelling-microscopy break junction technique. Density functional theory calculation suggests that electrochemical gating aligns molecular frontier orbitals relative to the electrode Fermi level, switching the molecule from an off resonance state to "partial'' resonance.