Local field effects in current transport through molecular electronic devices: Current density profiles and local nonequilibrium electron distributions

Yongqiang Xue, Mark A Ratner

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

We analyze nonequilibrium current transport in molecular electronic devices, using as an example devices formed by two terphenyl dithiol molecules attached to gold electrodes. We show that the spatially resolved current density profiles and local electrochemical potential drops provide valuable information regarding the local field effect on molecular transport, which depend on the internal structure of the molecules and cannot be obtained from measuring the current- and conductance-voltage characteristics alone.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume70
Issue number8
DOIs
Publication statusPublished - Aug 2004

Fingerprint

Molecular electronics
molecular electronics
electron distribution
Current density
current density
Molecules
terphenyls
Electrons
profiles
thiols
Gold
molecules
gold
Electrodes
electrodes
Electric potential
electric potential
dithiol

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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