Chinese Acad Sci, Inst Phys, Beijing 1000080, Peoples R China
; Chinese Acad Sci, Lab Nucl Anal Tech, Inst High Energy Phys, Beijing 100039, Peoples R China
A new experimental technique has been presented to investigate the surface-enhanced Raman scattering (SERS) on "individual and untouched" single-walled carbon nanotubes (SWNTs) deposited onto gold or silver film-covered substrate through a direct CVD method. It was found that the radial breathing mode for SERS shows a narrower linewidth than the normal Raman spectroscopy (NRS). Relative to NRS. the SERS spectra also revealed a preferable contribution to some metallic component of the G line. However no Obvious difference for D and G' between SERS and NRS has been revealed, which is different from the previous results oil bulk SWNT samples. (c) 2005 Elsevier B.V. All rights reserved.