The Molecule-Electrode Interface in Single-Molecule Transistors

Hongbin Yu, Yi Luo, Kristen Beverly, J. Fraser Stoddart, Hsian Rong Tseng, James R. Heath

Research output: Contribution to journalArticlepeer-review

125 Scopus citations

Abstract

What's in the middle matters little! Differential conductance measurements made on single-molecule rotaxanes and their precursor dumbbells in transistors with platinum electrodes reflect the molecule-electrode contacts rather than the middle section of the molecules (see diagram; the color reflects the conductance, with dark corresponding to zero current). Interface states dominate electron transport. Molecular signatures are masked and even constitutional asymmetry in the molecule is difficult to detect.

Original languageEnglish (US)
Pages (from-to)5706-5711
Number of pages6
JournalAngewandte Chemie - International Edition
Volume42
Issue number46
DOIs
StatePublished - Dec 1 2003
Externally publishedYes

Keywords

  • Break junctions
  • Differential conductance
  • Molecular devices
  • Molecule electrode contact
  • Rotaxanes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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