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

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    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
    Volume521
    Issue number1-3
    DOIs
    Publication statusPublished - 2000 Mar 28

    Fingerprint

    Phase modulation
    Infrared absorption
    Frequency modulation
    phase modulation
    frequency modulation
    Genetic Recombination
    infrared absorption
    Gene Conversion
    Polarons
    polarons
    Charge transfer
    Absorption spectra
    Rate constants
    infrared spectra
    charge transfer
    excitons
    absorption spectra
    poly-para-phenylene
    LDS 751

    Keywords

    • 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

    Cite this

    Phase-modulation measurements of photoinduced infrared absorptions from poly(p-phenylene) and poly(2,5-dioctyloxy-p-phenylenevinylene). / Furukawa, Yukio; Cha, Y. H.; Noguchi, T.; Ohnishi, T.; Tasumi, M.

    In: Journal of Molecular Structure, Vol. 521, No. 1-3, 28.03.2000, p. 211-220.

    Research output: Contribution to journalArticle

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    abstract = "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.",
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    AU - Cha, Y. H.

    AU - Noguchi, T.

    AU - Ohnishi, T.

    AU - Tasumi, M.

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    AB - 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.

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