Format

Send to:

Choose Destination
See comment in PubMed Commons below
Nano Lett. 2012 Feb 8;12(2):964-9. doi: 10.1021/nl204036d. Epub 2012 Jan 20.

Transport/magnetotransport of high-performance graphene transistors on organic molecule-functionalized substrates.

Author information

  • 1Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan.

Abstract

In this article, we present the transport and magnetotransport of high-quality graphene transistors on conventional SiO(2)/Si substrates by modification with organic molecule octadecyltrichlorosilane (OTS) self-assembled monolayers (SAMs). Graphene devices on OTS SAM-functionalized substrates with high carrier mobility, low intrinsic doping, suppressed carrier scattering, and reduced thermal activation of resistivity at room temperature were observed. Most interestingly, the remarkable magnetotransport of graphene devices with pronounced quantum Hall effect, strong Shubnikov-de Haas oscillations, a nonzero Berry's phase, and a short carrier scattering time also confirms the high quality of graphene on this ultrasmooth organic SAM-modified platform. The high-performance graphene transistors on the solution-processable OTS SAM-functionalized SiO(2)/Si substrates are promising for the future development of large-area and low-cost fabrications of graphene-based nanoelectronics.

© 2012 American Chemical Society

PMID:
22224857
[PubMed - indexed for MEDLINE]
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