RF response of single-walled carbon nanotubes

Nano Lett. 2007 Sep;7(9):2672-5. doi: 10.1021/nl0710598. Epub 2007 Aug 18.

Abstract

We present for the first time an in-depth study of the RF response of a single-walled carbon nanotube (SWCNT) rope. Our novel electrode design, based on a tapered coplanar approach, allows for single tube measurements well into the GHz regime, minimizing substrate-related parasitics. From the analysis of the S-parameters, the ac transport mechanism in the range 30 kHz to 6 GHz is established. This work is an essential prerequisite for the fabrication of high-speed devices based on bundles of nanowires or low-dimensional structures.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Crystallization / methods*
  • Electric Impedance
  • Macromolecular Substances / chemistry
  • Materials Testing
  • Molecular Conformation
  • Nanotechnology / methods*
  • Nanotubes, Carbon / chemistry*
  • Nanotubes, Carbon / radiation effects
  • Nanotubes, Carbon / ultrastructure*
  • Particle Size
  • Radio Waves
  • Surface Properties

Substances

  • Macromolecular Substances
  • Nanotubes, Carbon