DC Electrical Anisotropy of Stretchoriented Polyacetylene: Doping and Temperature Dependence

  • M. T. Ahmed
  • S. Roth
  • M. D. Migahed
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 107)

Abstract

The DC electrical conductivity of stretch-oriented “new” polyacetylene (prepared by the sol vent-free method, “cummene-polyacetylene” according to Akagi et al.) has been measured for various concentrations of iodine, AsF5, and FeCl3 doping in the temperature range 300 K>T>5 K. The electrical anisotropy (ratio of conductivity parallel and perpendicular to the draw direction) has been found to increase rapidly with the doping concentration for 0<y<1% and slowly above (where y is the doping concentration according to (CH+y · yI 3 - )x). Only a slight temperature dependence of the anisotropy has been found.

Keywords

Anisotropy Iodine Egypt FeCl3 Lene 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • M. T. Ahmed
    • 1
  • S. Roth
    • 1
  • M. D. Migahed
    • 2
  1. 1.Max-Planck-Institut für FestkörperforschungStuttgartGermany
  2. 2.Faculty of Science, Physics DepartmentMansoura UniversityMansouraEgypt

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