Quasi-ballistic electron transport in as-produced and annealed multiwall carbon nanotubes

Hisashi Kajiura, Anil Nandyala, Alexey Bezryadin

Research output: Contribution to journalArticle

Abstract

The affect of annealing in the electron transport properties of CVD-grown multiwall carbon nanotubes was investigated. The annealed nanotubes showed quasi-ballistic electronic transport with the electronic mean free path (EMFP) reaching a few microns, even at room temperature. It was observed that for the as-produced samples, the peak of the EMFP distribution was found at ∼0.3 μm, while annealed samples were observed at∼0.2 μm. The results show that annealing considerably reduces the amount of defects and leads to a significant increase in the electronic mean free path, which reaches a few microns at room temperature.

Original languageEnglish (US)
Pages (from-to)1317-1319
Number of pages3
JournalCarbon
Volume43
Issue number6
DOIs
StatePublished - Apr 11 2005

Keywords

  • Carbon nanotubes
  • Chemical vapor deposition
  • Heat treatment
  • Thermal analysis
  • Transport properties

ASJC Scopus subject areas

  • Materials Chemistry

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