Abstract
An analytical expression is obtained for the I-V curves for a tight-binding model of a molecule-metal junction for off-resonance injection. The derivation takes into account a self-consistent determination of the voltage that leads to a spatial pattern where the voltage drop occurs at the molecule-wire interface. The relevance of this model for electron transfer reactions and molecular conductance is assessed. It leads to a striking power law dependence of the current on the voltage, while preserving the exponential length dependence of either the conductance or the reaction rate.
Original language | English (US) |
---|---|
Pages (from-to) | 365-370 |
Number of pages | 6 |
Journal | Chemical Physics |
Volume | 264 |
Issue number | 3 |
DOIs | |
State | Published - Mar 1 2001 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry