Raman spectral imaging of a carbon nanotube intramolecular junction.

Journal Article (Journal Article)

Confocal Raman spectral imaging results are presented for a metal-to-semiconductor intramolecular junction (IMJ) on an isolated carbon nanotube. Spectra observed at the junction are consistent with the symmetry lowering expected from the occurrence of pentagon-heptagon defects to produce the chirality shift. The IMJ transition zone is sharp and preserves the nanotube diameter. These results have significant implications for the future use of IMJs as electronic devices, including how prevalent these structures are and how their growth may be rationally targeted. Raman imaging has been demonstrated to be a powerful tool for IMJ studies and provides a more accessible method for further studies of IMJ structure and growth.

Full Text

Duke Authors

Cited Authors

  • Doorn, SK; O'connell, MJ; Zheng, L; Zhu, YT; Huang, S; Liu, J

Published Date

  • January 2005

Published In

Volume / Issue

  • 94 / 1

Start / End Page

  • 016802 -

PubMed ID

  • 15698112

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.94.016802


  • eng