Journal of Nanomedicine & Nanotechnology

Single nanowire on graphene (SNOG) as an efficient, reproducible, and stable SERS-active platform

11^th International Conference and Expo on Nanoscience and Molecular Nanotechnology

October 20-22, 2016 Rome, Italy

Taejoon Kang

Korea Research Institute of Bioscience and Biotechnology, Republic of Korea

Posters & Accepted Abstracts: J Nanomed Nanotechnol

Abstract:

Developing a well-defined nanostructure that can provide strong, reproducible, and stable SERS signals is quite important for the practical application of surface-enhanced Raman scattering (SERS) sensors. We report here a novel Single Nanowire (NW) on Graphene (SNOG) structure as an efficient, reproducible, and stable SERS-active platform. Au NWs having a well-defined singlecrystal geometry on a monolayer graphene-coated metal film can form a well-defined, continuous nanogap structure that provides extremely reproducible and stable SERS signals. The in-NW reproducibility was verified by 2-dimensional Raman mapping, and the NW-to-NW reproducibility was verified by the cumulative curves of 32 SERS spectra. The simulation also indicated that a highly regular, line-shaped hot spot formed between the Au NW and graphene. Furthermore, SNOG platforms showed improved photostability and long-term oxidation immunity. We anticipate that SNOG platforms will be appropriate for practical biological and chemical sensor applications that demand reproducible, stable, and strong signal production.

Biography :

Taejoon Kang has completed his PhD and Post-doctoral studies from KAIST. He is the Senior Researcher at Korea Research Institute of Bioscience and Biotechnology (KRIBB). He has published more than 30 papers in reputed journals.

Email: kangtaejoon@gmail.com