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 journalArticle

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
  • Materials Chemistry
  • Polymers and Plastics

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