The Use of Terahertz Spectroscopy as a Sensitive Probe in Discriminating the Electronic Properties of Structurally Similar Multi-Walled Carbon Nanotubes

Parrott E. P. J., Zeitler J. A., McGregor J., Oei S., Unalan H. E., Milne W. I., ...More

ADVANCED MATERIALS, vol.21, pp.3953-3958, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 21
  • Publication Date: 2009
  • Doi Number: 10.1002/adma.200900941
  • Journal Name: ADVANCED MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.3953-3958
  • Middle East Technical University Affiliated: Yes

Abstract

Terahertz: spectroscopy is used to definitively distinguish between two multi-walled carbon nanotubes (see figure), which have commercial applications in a number of advanced materials. Other techniques do not provide a sensitive discrimination of the measured properties. This observation is rationalized by considering the dielectric nature of the materials and the relationship of this to their structural differences.