Ag/Carbon Nanotubes for Surface-Enhanced Raman Scattering

Abstract

This chapter discusses Ag/carbon nanotubes for surface-enhanced Raman scattering (SERS). The SERS-active substrates were prepared by electrodeposition of Ag nanoparticles in multiwalled carbon nanotubes (MWCNTs)-based nanocomposites for SERS sensor application. There are many effective methods for the preparation of SERS-active Ag substrates. These include Langmuir-Blodgett (LB) technique, self-assembly, lithography, and electrodeposition. This work is to introduce the SERS-active surface prepared by electrodeposition of Ag nanoparticles in MWCNTs for SERS chemical sensor application. R6G, a dye molecule, is chosen as a probe molecule because it has been well investigated by SERS. Further, the preparation of Ag-MWCNTs-Nafion nanocomposite and Ag-MWCNTs-alumina-coated-silica (ACS) nanocomposite for SERS, and its FESEM image and Raman spectra have been shown. In conclusion, it has been shown that the SERS techniques offer a means of sensitive detection of probe molecules. The prepared Ag-MWCNT nanocomposites exhibited good SERS performance and also featured a simple application process.

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Title
Ag/Carbon Nanotubes for Surface-Enhanced Raman Scattering
Book Title
Raman Spectroscopy for Nanomaterials Characterization
Book DOI
10.1007/978-3-642-20620-7
Chapter DOI
10.1007/978-3-642-20620-7_6
Part of
Volume
Editors
  • Challa S. S. R. Kumar (1)
  • Editor Affiliation
  • 1 Center for Advanced Microstructures and Devices, Baton Rouge, LA, USA
  • Authors
  • Han-Wei Chang (1_6)
  • Ping-Chieh Hsu (1_6)
  • Yu-Chen Tsai (1_6)
  • Author Affiliation
  • 1_6 Department of Chemical Engineering, National Chung Hsing University, 250 Kuo Kuang Road, Taichung, 402, Taiwan
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