Infrared spectroscopy of electroluminescent conjugated polymers

Yukio Furukawa, Shinobu Furukawa, Shino Maekawa, Mitsuru Ishima

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    The infrared spectra of the light-emitting diodes and the metal-insulator-semiconductor devices based on a poly(p-phenylenevinylene) derivative MEH-PPV have been measured in situ with a reflection configuration. The voltage-induced infrared spectra of these devices have been measured by the FT-IR difference-spectrum method. The observed bands have been attributed to the carriers injected into the polymer layers. The observation of positive carriers in the polymer light-emitting diode is probably related to the predominance of injected positive carriers, which is one of the factors in the low efficiency of the polymer light-emitting diode. In situ infrared reflective absorption measurements provide the information about injected carriers, which play a central role in the properties and the functions of polymer electronic devices.

    Original languageEnglish
    Pages (from-to)99-106
    Number of pages8
    JournalMacromolecular Symposia
    Volume184
    DOIs
    Publication statusPublished - 2002

    Fingerprint

    Conjugated polymers
    Infrared spectroscopy
    Polymers
    infrared spectroscopy
    Light emitting diodes
    light emitting diodes
    polymers
    Infrared radiation
    infrared spectra
    MIS (semiconductors)
    Semiconductor devices
    semiconductor devices
    infrared absorption
    Metals
    Derivatives
    Electric potential
    electric potential
    configurations
    electronics

    ASJC Scopus subject areas

    • Polymers and Plastics
    • Materials Chemistry

    Cite this

    Infrared spectroscopy of electroluminescent conjugated polymers. / Furukawa, Yukio; Furukawa, Shinobu; Maekawa, Shino; Ishima, Mitsuru.

    In: Macromolecular Symposia, Vol. 184, 2002, p. 99-106.

    Research output: Contribution to journalArticle

    Furukawa, Yukio ; Furukawa, Shinobu ; Maekawa, Shino ; Ishima, Mitsuru. / Infrared spectroscopy of electroluminescent conjugated polymers. In: Macromolecular Symposia. 2002 ; Vol. 184. pp. 99-106.
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