Electronic excited states in conjugated polymers

S. Mazumdar, S. N. Dixit

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

We re-examine the subgap neutral and charged soliton absorptions in polyacetylene and the 21 Ag state in finite polyenes within the context of a simple Peierls-Hubbard model. Our motivation is to determine the origin of the optical gap in trans-polyacetylene and to determine the magnitude of the effective on-site Coulomb repulsion. We conclude that this term lies between 2.25t0 and 2.75t0, where t0 is the nearest neighbor one-electron hopping integral.

Original languageEnglish (US)
Pages (from-to)D463-D468
JournalSynthetic Metals
Volume28
Issue number3
DOIs
StatePublished - Feb 20 1989
Externally publishedYes

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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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