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Journal of Nanomaterials
Volume 2013 (2013), Article ID 128254, 5 pages
http://dx.doi.org/10.1155/2013/128254
Research Article

The Regulation of Surface-Enhanced Raman Scattering Sensitivity of Silver Nanorods by Silicon Sections

1Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
2Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China

Received 26 April 2013; Revised 6 July 2013; Accepted 10 July 2013

Academic Editor: Miguel A. Correa-Duarte

Copyright © 2013 Xian Zhang 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

Vertically aligned silver nanorods were good substrates for surface-enhanced Raman scattering. The surface-enhanced Raman scattering sensitivity of nanorods can be regulated through the method that the silver nanorod is divided into four uniform silver sections using five uniform silicon sections. And the length of silicon sections is the key factor in regulating the surface-enhanced Raman scattering sensitivity. In the regulation, the best surface-enhanced Raman scattering performance is about 4 times as large as the worst performance. The study provides an effective way to regulate the surface-enhanced Raman scattering sensitivity of silver nanorods and its possible explanation about mechanism.