Nanotransport in polyacetylene single fiber

Toward the intrinsic properties

J. G. Park, Gyu-Tae Kim, V. Krstic, B. Kim, S. H. Lee, S. Roth, M. Burghard, Y. W. Park

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

The electrical transport properties of iodine doped polyacetylene (PA) nanofibers were measured as function of temperature in micron and sub-micron scale. Polyacetylene fiber network measured in micron scale shows weaker temperature dependence of resistivity and smaller negative magnetoresistance (MR) at T = 1.5K compared to those of bulk PA film. The reaction of all electrodes with dopant became serious in submicron experiment, so that stripes of Pt electrodes with 100nm separation were patterned on the top at the SiO2 substrate to prevent the reaction. Non-ohmic I-V characteristics are observed in PA nanofiber. The gate dependence shows the charge carrier to be hole with mobility μFET ∼ 4.4 × 10-5 cm2/Vs at 233K. The non-ohmic I-V dependence at high electric fields could be originated fron the soliton tunneling conduction in PA nanofiber.

Original languageEnglish
Pages (from-to)53-56
Number of pages4
JournalSynthetic Metals
Volume119
Issue number1-3
DOIs
Publication statusPublished - 2001 Mar 15
Externally publishedYes

Fingerprint

Polyacetylenes
polyacetylene
Nanofibers
fibers
Fibers
Electrodes
electrodes
Magnetoresistance
Field effect transistors
Iodine
Solitons
Charge carriers
Transport properties
iodine
charge carriers
field effect transistors
solitary waves
transport properties
Electric fields
Doping (additives)

Keywords

  • Electrical transport
  • FET
  • Nanofiber
  • Polymetylene

ASJC Scopus subject areas

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

Cite this

Park, J. G., Kim, G-T., Krstic, V., Kim, B., Lee, S. H., Roth, S., ... Park, Y. W. (2001). Nanotransport in polyacetylene single fiber: Toward the intrinsic properties. Synthetic Metals, 119(1-3), 53-56. https://doi.org/10.1016/S0379-6779(00)00689-5

Nanotransport in polyacetylene single fiber : Toward the intrinsic properties. / Park, J. G.; Kim, Gyu-Tae; Krstic, V.; Kim, B.; Lee, S. H.; Roth, S.; Burghard, M.; Park, Y. W.

In: Synthetic Metals, Vol. 119, No. 1-3, 15.03.2001, p. 53-56.

Research output: Contribution to journalArticle

Park, JG, Kim, G-T, Krstic, V, Kim, B, Lee, SH, Roth, S, Burghard, M & Park, YW 2001, 'Nanotransport in polyacetylene single fiber: Toward the intrinsic properties', Synthetic Metals, vol. 119, no. 1-3, pp. 53-56. https://doi.org/10.1016/S0379-6779(00)00689-5
Park, J. G. ; Kim, Gyu-Tae ; Krstic, V. ; Kim, B. ; Lee, S. H. ; Roth, S. ; Burghard, M. ; Park, Y. W. / Nanotransport in polyacetylene single fiber : Toward the intrinsic properties. In: Synthetic Metals. 2001 ; Vol. 119, No. 1-3. pp. 53-56.
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