Phase-modulation measurements of photoinduced infrared absorptions from poly(p-phenylene) and poly(2,5-dioctyloxy-p-phenylenevinylene)

Yukio Furukawa, Y. H. Cha, T. Noguchi, T. Ohnishi, M. Tasumi

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    Photoinduced infrared absorption spectra of poly(p-phenylene) and poly(2,5-dioctyloxy-p-phenylenevinylene) have been measured by the phase- modulation technique. The modulation-frequency dependencies of the intensity and the phase delay of the photoinduced infrared absorptions have been obtained. The observed modulation-frequency dependencies have been numerically simulated on the basis of a model consisting of a bimolecular recombination of the positive and negative polarons that are formed from a photogenerated polaron pair (interchain charge-transfer exciton). The rate constant of the bimolecular recombination process has been obtained. (C) 2000 Elsevier Science B.V.

    Original languageEnglish
    Pages (from-to)211-220
    Number of pages10
    JournalJournal of Molecular Structure
    Issue number1-3
    Publication statusPublished - 2000 Mar 28



    • Conjugated polymers
    • Infrared spectroscopy
    • Phase-modulation method
    • Poly(2,5-dioctyloxy-p-phenylenevinylene)
    • Poly(p-phenylene)

    ASJC Scopus subject areas

    • Structural Biology
    • Organic Chemistry
    • Physical and Theoretical Chemistry
    • Spectroscopy
    • Atomic and Molecular Physics, and Optics

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