Structure of K-Doped Polyacetylene and Its Variations with Annealing, Studied by Neutron Diffraction

  • J. P. Aime
  • M. Bertault
  • P. Delannoy
  • M. Schott
  • R. L. Elsenbaumer
  • G. G. Miller
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 63)

Abstract

It was found recently that annealing cis-polyaeetylene[(CH)x] doped with potassium, at temperatures higher than 140°C, produces a large permanent increase in its room temperature d.c. conductivity by a factor of 5–10 (Fig. 1). The annealed films are remarkably stable even at temperatures as high as 200°C (1).A somewhat smaller effect was observed on Rb-doped samples, whereas Li-doped, Na-doped and Cs-doped cis-(CH)x did not show any substantial conductivity increase upon annealing (1). This behavior of n-doped (CH)x contrasts sharply with that of the p-doped
Fig. 1:

Diagram of conductivity cell used for determining the thermal behavior of the conductivity of alkali-metal-doped polyacetylene films (Ref. 1).

samples, which degrade quickly and irreversibly upon even a modest increase of temperature (2).

Keywords

Calorimetry Polyacetylene 

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References

  1. (1).
    H. Eckhardt, P. Delannoy, G.G. Miller, N.S. Murthy and R.H. Baughman, 38th Calorimetry Conference Proceedings, Williamsburg, VA, Sept. 1983. R. Elsenbaumer, P. Delannoy, G.G. Miller, C.F. Forbes, N.S. Murthy, H. Eckhardt and R.H. Baughman, to be published.Google Scholar
  2. (2).
    M. Rolland, S. Lefrant, M. Aldissi, P. Bernier, E. Rzedka, F. Schue, J. Electron. Mater. 10, 619 (1981)CrossRefADSGoogle Scholar
  3. (3).
    J.P. Aimé, M. Bertault, P. Delannoy, R.L. Elsenbaumer, G.G. Miller and M. Schott, to be published in J. Phys. Lett. (1985)Google Scholar
  4. (4).
    S. Flandrois, C. Hauw and B. François, J. Physique Coll. 44, C3–523 (1983).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1985

Authors and Affiliations

  • J. P. Aime
    • 1
  • M. Bertault
    • 1
  • P. Delannoy
    • 1
  • M. Schott
    • 1
  • R. L. Elsenbaumer
    • 2
  • G. G. Miller
    • 2
  1. 1.Groupe de Physique des Solides de l’E.N.S.Université Paris VIIParis Cedex 05France
  2. 2.Corporate ResearchAllied CorporationMorristownUSA

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