Electrochemical properties of atomic-scale metal wires

Bingqian Xu, Huixin He, Salah Boussaad, Nongjian J. Tao

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

We have fabricated atomic-scale metal wires with quantized conductance in electrolytes and studied double layer charging, anionic adsorption and surface stress effects on the quantum transport in the wires. In the double layer charging regime, the conductance changes linearly with the potential, which can be attributed to a change in the amount of electron spill-out of the wire. A large change in the potential results in a substantial stress in the wires, causing atoms in the wires to rearrange. Upon anionic adsorption, the conductance decreases due to the scattering of conduction electrons by the adsorbed anions.

Original languageEnglish (US)
Pages (from-to)3085-3091
Number of pages7
JournalElectrochimica Acta
Volume48
Issue number20-22
DOIs
Publication statusPublished - Sep 30 2003
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

Keywords

  • Anionic adsorption
  • Conductance quantization
  • Electrochemical properties
  • Nanowires
  • Quantum wires

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