Polaron lattice in highly conducting polyaniline: Theoretical and optical studies

S. Stafström*, J. L. Brédas, A. J. Epstein, H. S. Woo, D. B. Tanner, W. S. Huang, A. G. MacDiarmid

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

814 Scopus citations

Abstract

We present optical-absorption data together with band-structure calculations for the polaron lattice and bipolaron lattice for the highly conducting form of polyaniline, proton-doped polyemeraldine. We show that the polaron-lattice band structure fully accounts for the observed optical transitions. These results are in marked contrast with the electronic structure of other doped conducting polymers, in that only one single broad polaron band appears deep in the gap together with a very narrow band nearly degenerate with the conduction-band edge.

Original languageEnglish (US)
Pages (from-to)1464-1467
Number of pages4
JournalPhysical Review Letters
Volume59
Issue number13
DOIs
StatePublished - 1987
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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