Raman studies of doped polythiophene and the radical cation and dication of quinquethiophene

Yukio Furukawa; Nami Yokonuma; Mitsuo Tasum; Masami Kuroda; Juzo Nakayama

doi:10.1080/10587259408039238

Raman studies of doped polythiophene and the radical cation and dication of quinquethiophene

Yukio Furukawa, Nami Yokonuma, Mitsuo Tasum, Masami Kuroda, Juzo Nakayama

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The near-infrared Raman and electronic absorption spectra of an as-polymerized BF4˜-doped polythiophene film have been measured and analyzed by referring to the data of the radical cation and dication of a-quinquethiophene, which are models of a positive polaron and a positive bipolaron, respectively. Similarities between the Raman spectrum of doped polythiophene and that of the radical cation suggest that the observed Raman bands of the doped polymer arise from positive polarons. It is shown that the two characteristic bands in the electronic absorption spectrum of the doped polymer are assignable to positive polarons.

Original language	English
Pages (from-to)	113-120
Number of pages	8
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	256
Issue number	1
DOIs	https://doi.org/10.1080/10587259408039238
Publication status	Published - 1994
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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Raman studies of doped polythiophene and the radical cation and dication of quinquethiophene. / Furukawa, Yukio; Yokonuma, Nami; Tasum, Mitsuo; Kuroda, Masami; Nakayama, Juzo.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 256, No. 1, 1994, p. 113-120.

Research output: Contribution to journal › Article › peer-review

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