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G-band Raman spectra of isolated single wall carbon nanotubes: Diameter and chirality dependence

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MAKING FUNCTIONAL MATERIALS WITH NANOTUBES, том 706 из Materials Research Society Symposium Proceedings, стр. 187-192. 506 KEYSTONE DRIVE, WARRENDALE, PA 15088-7563 USA, Mat Res Soc, MATERIALS RESEARCH SOCIETY, (2002)Symposium on Making Functional Materials with Nanotubes held at the 2001 MRS Fall Meeting, BOSTON, MA, NOV 26-29, 2001.

Аннотация

We present results from resonant Raman spectroscopy on the graphite-like G band by measuring Raman spectra on isolated single wall carbon nanotubes (SWNTs). We discuss the G-band lineshape dependence on nanotube diameter and chirality, as well as polarization studies related to the antenna effect. Symmetry selection rules, dipolar and multipolar antenna behaviors are discussed. Spectra at the single nanotube level are related to spectra observed from SWNT bundles.

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