Diameter dependence of the Raman D-band in isolated single-wall carbon nanotubes

M. A. Pimenta, A. Jorio, S. D. Brown, G. Dresselhaus, J. H. Hafner, C. M. Lieber, R. Saito, A. G. Souza Filho, M. S. Dresselhaus

研究成果: Article査読

119 被引用数 (Scopus)

抄録

Raman D-band spectra are reported for several different SWNTs using two different laser energies (Elaser =1.58 and 2.41 eV). At a fixed Elaser, individual isolated SWNTs exhibit different diameter-dependent D-band frequencies ωD around an average value. For both semiconducting and metallic tubes, ωD decreases with decreasing nanotube diameter, though ωD for isolated metallic SWNTs is higher than for isolated semiconducting SWNTs. The average D-band frequency depends linearly on Elaser, as previously observed for SWNT bundles, suggesting that the D-band in SWNTs is activated by defects or by the finite size of the SWNTs.

本文言語English
論文番号041401
ページ(範囲)414011-414014
ページ数4
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
64
4
出版ステータスPublished - 2001 7 15
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

フィンガープリント

「Diameter dependence of the Raman D-band in isolated single-wall carbon nanotubes」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル