Format

Send to

Choose Destination
See comment in PubMed Commons below
Nanotechnology. 2009 Nov 18;20(46):465401. doi: 10.1088/0957-4484/20/46/465401. Epub 2009 Oct 21.

Semiconducting III-V nanowires with nanogaps for molecular junctions: DFT transport simulations.

Author information

  • 1Department of Micro- and Nanotechnology, NanoDTU, Technical University of Denmark, Kongens, Lyngby, DK-2800, Denmark. christian.kallesoe@nanotech.dtu.dk

Abstract

We consider here the possibility of using III-V heterostructure nanowires as electrodes for molecular electronics instead of metal point contacts. Using ab initio electronic structure and transport calculations, we study the effect on electronic properties of placing a small molecule with thiol linking groups, benzene-di-thiol (BDT), within a nanosize gap in a III-V nanowire. Furthermore, it is investigated how surface states affect the transport through pristine III-V nanowires and through the BDT molecule situated within the nanogap. Using GaAs and GaP as III-V materials we find that the BDT molecule provides transport through the entire system comparable to the case of gold electrodes.

PMID:
19843997
DOI:
10.1088/0957-4484/20/46/465401
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for IOP Publishing Ltd.
    Loading ...
    Support Center