PlumX Metrics
Embed PlumX Metrics

Local ionic and electron heating in single-molecule junctions

Nature Nanotechnology, ISSN: 1748-3395, Vol: 2, Issue: 11, Page: 698-703
2007
  • 180
    Citations
  • 0
    Usage
  • 115
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

Article Description

A basic aim in molecular electronics is to understand transport through a single molecule connected to two electrodes. Substantial progress towards this goal has been made over the past decade as a result of advances in both experimental techniques and theoretical methods. Nonetheless, a fundamental and technologically important issue, current-induced local heating of molecules, has received much less attention. Here, we report on a combined experimental and theoretical study of local heating in single molecules (6-, 8- and 10-alkanedithiol) covalently attached to two gold electrodes as a function of applied bias and molecular length. We find that the effective local temperature of the molecular junction first increases with applied bias, and then decreases after reaching a maximum. At fixed bias, the effective temperature decreases with increasing molecular length. These experimental findings are in agreement with hydrodynamic predictions, which include both electron-phonon and electron-electron interactions. © 2007 Nature Publishing Group.

Bibliographic Details

Huang, Zhifeng; Chen, Fang; D'agosta, Roberto; Bennett, Peter A; Di Ventra, Massimiliano; Tao, Nongjian

Springer Science and Business Media LLC

Chemical Engineering; Physics and Astronomy; Engineering; Materials Science

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know