Conducting Polymers: Halogen Doped Polyacetylene.
Abstract
A study of the electrical conductivity of the halogen doped trans-polyacetylene system (CH)x, is reported. When films of trans-(CH)x are exposed to chlorine, bromine or iodine vapor, uptake of halogen occurs; and the conductivity increases markedly, over eight orders of magnitude in the case of iodine. The behavior of the halogenated polyacetylene is like that of a series of semiconductors with activation energies which vary with halogen content. The heavily doped polyacetylene shows metallic behavior with the semiconductor-metal transition near 2-3% dopant concentration. The results are discussed in terms of a model of the doping process based on charge transfer. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 05, 1978
- Accession Number
- ADA058373
Entities
People
- A. J. Heeger
- C. K. Chiang
- E. J. Louis
- H. Shirakawa
- Y. W. Park
Organizations
- University of Pennsylvania