Format

Send to:

Choose Destination
See comment in PubMed Commons below
Nano Lett. 2008 Jan;8(1):1-5. Epub 2007 Dec 18.

Electronic transport in single molecule junctions: control of the molecule-electrode coupling through intramolecular tunneling barriers.

Author information

  • 1Nano-Science Center (Niels Bohr Institute and Department of Chemistry), University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark.

Abstract

We report on single molecule electron transport measurements of two oligophenylenevinylene (OPV3) derivatives placed in a nanogap between gold (Au) or lead (Pb) electrodes in a field effect transistor device. Both derivatives contain thiol end groups that allow chemical binding to the electrodes. One derivative has additional methylene groups separating the thiols from the delocalized pi-electron system. The insertion of methylene groups changes the open state conductance by 3-4 orders of magnitude and changes the transport mechanism from a coherent regime with finite zero-bias conductance to sequential tunneling and Coulomb blockade behavior.

PMID:
18085806
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Chemical Society
    Loading ...
    Write to the Help Desk