Get access
Advanced Materials

Ultra-Sensitive Graphene-Plasmonic Hybrid Platform for Label-Free Detection

Authors

  • Pu Wang,

    1. Department of Materials Science and Engineering and California Nano Systems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA 90095-1595, USA
    Search for more papers by this author
  • Owen Liang,

    1. Department of Materials Science and Engineering and California Nano Systems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA 90095-1595, USA
    Search for more papers by this author
  • Wei Zhang,

    1. Department of Materials Science and Engineering and California Nano Systems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA 90095-1595, USA
    Search for more papers by this author
  • Thomas Schroeder,

    1. Department Materials Research, IHP, Im Technologiepark 25, Frankfurt (Oder), D-15236, Germany
    Search for more papers by this author
  • Ya-Hong Xie

    Corresponding author
    1. Department of Materials Science and Engineering and California Nano Systems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA 90095-1595, USA
    • Department of Materials Science and Engineering and California Nano Systems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA 90095-1595, USA.
    Search for more papers by this author

Abstract

A graphene-Au nano-pyramid hybrid system that enables label-free single molecule detection is demonstrated. The bio-compatible graphene-based SERS platform boosts a high density of hot spots with local SERS enhancement factor over 1010. We demonstrate that graphene can play a key role in quantitative study of SERS mechanisms, and can also serve as a promising building block in SERS active structures especially for biosensor applications.

original image
Get access to the full text of this article

Ancillary