Study of charge conduction in a poly(p-phenylenevinylene) derivative carrying an electron-transporting moiety

Jae Won Jang, Dong Keun Oh, Chang Hoon Lee, Cheol Eui Lee, Dong Won Lee, Jung Il Jin

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Recently, we have reported transient electroluminesence (EL) measurements in an organic light-emitting diode based on a poly(p-phenylenevinylene) (PPV) derivative carrying an electron-transporting moiety, poly[(2-(4-biphenyl)-5-(4-tert-butylphenyl)-1,3,4-oxdianzole)-p- phenylenevinylene] (PPPDPV), in order to investigate the mechanism of the enhanced external quantum efficiency. In this work, we have carried out J-E (I-V) characteristics measurements in EL devices based on PPV and PPPDPV, respectively, which revealed a space-charge limited conduction (SCLC) with exponential trap distribution mechanism in both. The trap densities of majority carrier were calculated from the J-E (I-V) curves and were compared with the EL external quantum efficiencies.

    Original languageEnglish
    Pages (from-to)475-476
    Number of pages2
    JournalSynthetic Metals
    Volume119
    Issue number1-3
    DOIs
    Publication statusPublished - 2001 Mar 15

    Keywords

    • Hole trap density
    • J-E (I-V) measurement
    • PPPDPV
    • PPV
    • Space charge limited conduction

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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