Electronic absorption and Raman studies of BF-4-doped polythiophene based on the spectra of the radical cation and dication of α-sexithiophene

N. Yokonuma, Y. Furukawa, M. Tasumi, M. Kuroda, J. Nakayama

Research output: Contribution to journalArticle

82 Citations (Scopus)

Abstract

The electronic absorption and Raman spectra of as-polymerized BF-4-doped polythiophene have been analyzed on the basis of the spectra of the radical cation and dication of α-sexithiophene, viewed as models of a positive polaron and a positive bipolaron, respectively. The Raman spectra taken with laser lines between 632.8 and 1064 nm have been attributed to positive polarons existing in doped polythiophene. The Raman results confirm that the two-band feature observed in the electronic absorption spectra of doped polythiophene is attributable to polarons.

Original languageEnglish
Pages (from-to)431-436
Number of pages6
JournalChemical Physics Letters
Volume255
Issue number4-6
DOIs
Publication statusPublished - 1996 Jun 14
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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