Surface-enhanced and normal stokes and anti-stokes Raman spectroscopy of single-walled carbon nanotubes.
Surface-enhanced and normal stokes and anti-stokes Raman spectroscopy of single-walled carbon nanotubes.
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DOI：
10.1103/physrevlett.84.3470
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发表时间：
2000-04
影响因子：
8.6
通讯作者：
K. Kneipp;H. Kneipp;P. Corio;S. Brown;K. Shafer;J. Motz;L. Perelman;E. Hanlon;A. Marucci
中科院分区：
文献类型：
--
作者：
K. Kneipp;H. Kneipp;P. Corio;S. Brown;K. Shafer;J. Motz;L. Perelman;E. Hanlon;A. Marucci
对于单壁碳纳米管与分形银胶体团簇接触的拉曼散射，表面增强因子至少为10(12)，从而测量到与半导体纳米管中切向C-C伸缩模式的均匀线宽相对应的非常窄的拉曼光谱。在半导体或金属纳米管对斯托克斯或反斯托克斯光谱的选择性共振拉曼贡献的框架下，讨论了正常和表面增强的斯托克斯和反斯托克斯光谱，以及由于极强的表面增强拉曼过程而产生的振动能级群和声子-声子相互作用。
Surface enhancement factors of at least 10(12) for the Raman scattering of single-walled carbon nanotubes in contact with fractal silver colloidal clusters result in measuring very narrow Raman bands corresponding to the homogeneous linewidth of the tangential C-C stretching mode in semiconducting nanotubes. Normal and surface-enhanced Stokes and anti-Stokes Raman spectra are discussed in the framework of selective resonant Raman contributions of semiconducting or metallic nanotubes to the Stokes or anti-Stokes spectra, respectively, of the population of vibrational levels due to the extremely strong surface-enhanced Raman process, and of phonon-phonon interactions.