Non-ohmic current-voltage characteristics in single-wall carbon nanotube network

Gyu-Tae Kim, S. H. Jhang, J. G. Park, Y. W. Park, S. Roth

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The non-ohmic current-voltage (I-V) characteristics of the single-wall carbon nanotube network were investigated at low temperatures. The temperature dependence of resistivity at low current (I<10 μA) shows non-metallic negative dρ/dT from T = 1.4-300 K. Below T<15 K, gradual decreases of resistivity are observed as the applied currents increase, showing significant non-ohmic behavior at high electric field. The I-V curves in the non-ohmic regime can be fitted well by the fluctuation-induced tunneling model, indicating the importance of inter-tubular contacts or inherent energy barriers inside the tubes.

Original languageEnglish
Pages (from-to)123-126
Number of pages4
JournalSynthetic Metals
Volume117
Issue number1-3
DOIs
Publication statusPublished - 2001 Feb 15
Externally publishedYes

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Carbon Nanotubes
Current voltage characteristics
Carbon nanotubes
carbon nanotubes
electrical resistivity
Energy barriers
electric potential
low currents
Electric fields
tubes
Temperature
temperature dependence
electric fields
Electric potential
curves
energy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Non-ohmic current-voltage characteristics in single-wall carbon nanotube network. / Kim, Gyu-Tae; Jhang, S. H.; Park, J. G.; Park, Y. W.; Roth, S.

In: Synthetic Metals, Vol. 117, No. 1-3, 15.02.2001, p. 123-126.

Research output: Contribution to journalArticle

Kim, Gyu-Tae ; Jhang, S. H. ; Park, J. G. ; Park, Y. W. ; Roth, S. / Non-ohmic current-voltage characteristics in single-wall carbon nanotube network. In: Synthetic Metals. 2001 ; Vol. 117, No. 1-3. pp. 123-126.
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