The metallic state of doped polyacetylene and polypyrrole

J. Joo, Y. Z. Wang, G. Du, H. Kaneko, T. Ishiguro, J. Tsukamoto, A. J. Epstein

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


A low frequency Drude model is used to analyze the huge negative dielectric constant at microwave frequency for heavily iodine doped stretched and unstretched Tsukamoto polyacetylene and unoriented polypyrrole containing PF6. The relatively small plasma frequencies and anomalously long scattering times of these materials indicate the importance of phonon back scattering of the most delocalized conduction electrons, as expected for the open Fermi surface of a highly anisotropic metal. These results are contrasted with the more localized behaviour of the neck and end portions of stretched polyacetylene and of polypyrrole doped with TsO.

Original languageEnglish
Pages (from-to)69-70
Number of pages2
JournalSynthetic Metals
Issue number1-3
Publication statusPublished - 1995 Mar 1
Externally publishedYes

Bibliographical note

Funding Information:
The authors gratefully acknowledge simulating discussions with V. N. Prigodin. We thank ONR Grant No. N00014-92-J1369 and International Joint Research Project from The New Energy and Industrial Technology Development Organization (NEDO, Japan) for financial support.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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