Optical absorption studies of sodium doped poly(cyanoterephthalylidene)

P. Bröms*, M. Fahlman, K. Z. Xing, W. R. Salaneck, P. Dannetun, J. Cornil, D. A. dos Santos, Jean-Luc Bredas, S. C. Moratti, A. B. Holmes, R. H. Friend

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The effects of doping poly(cyanoterephthalylidene) with sodium in ultrahighvacuum been studied by optical absorption spectroscopy. Upon doping, new optical transitions are observed within the bandgap; the characteristics of these transitions are consistent with the formation of bipolarons. The optical absorption results are confirmed by direct measurements of the doping-induced gap states using ultraviolet photoelectron spectroscopy.

Original languageEnglish (US)
Pages (from-to)93-96
Number of pages4
JournalSynthetic Metals
Volume67
Issue number1-3
DOIs
StatePublished - Jan 1 1994

Keywords

  • Doping
  • Optical absorption
  • Poly(cyanoterephthalylidene)

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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