Surface-enhanced Raman scattering from the individual metallic single-walled carbon nanotubes |
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| Authors: | Zhenping Zhou Dongyun Wan Xinyuan Dou Li Song Xiaoqin Yan Dongfang Liu Huajun Yuan Yan Gao Jianxiong Wang Lifeng Liu Weiya Zhou Sishen Xie |
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| Institution: | aInstitute of Physics, Chinese Academy of Science, Beijing 100080, PR China;bLaboratory of Nuclear Analysis Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, PR China |
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| Abstract: | 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 on bulk SWNT samples. |
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| Keywords: | Surface-enhanced Raman scattering Individual SWNTs |
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