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Journal of Nanomaterials
Volume 2013 (2013), Article ID 123812, 12 pages
http://dx.doi.org/10.1155/2013/123812
Review Article

Engineering Metal Nanostructure for SERS Application

1State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
2Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received 4 October 2012; Accepted 10 December 2012

Academic Editor: Yongsheng Li

Copyright © 2013 Yanqin Cao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Surface-enhanced Raman scattering (SERS) has attracted great attention due to its remarkable enhancement and excellent selectivity in the detection of various molecules. Noble metal nanomaterials have usually been employed for producing substrates that can be used in SERS because of their unique local plasma resonance. As the SERS enhancement of signals depends on parameters such as size, shape, morphology, arrangement, and dielectric environment of the nanostructure, there have been a number of studies on tunable nanofabrication and synthesis of noble metals. In this work, we will illustrate progress in engineering metallic nanostructures with various morphologies using versatile methods. We also discuss their SERS applications in different fields and the challenges.