Ultra-sensitive graphene-plasmonic hybrid platform for label-free detection.

Wang, Pu; Liang, Owen; Zhang, Wei; Schroeder, Thomas; Xie, Ya-Hong · Adv Mater · 2013

basic_science · Level V

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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 10(10) . 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.

Medical subject headings