Green emitting, alkoxy disubstituted poly(p-phenylene vinylene) for electroluminescent devices

F. Cacialli*, B. S. Chuah, J. S. Kim, D. A. dos Santos, R. H. Friend, S. C. Moratti, A. B. Holmes, Jean-Luc Bredas

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

24 Scopus citations

Abstract

We report the effects of the substitution of butoxy chains on the phenyl 2,3 positions of poly(p-phenylene vinylene) (PPV). We find that this substitution has a remarkable influence on the optical and electroluminescent properties of the resulting semiconductor (DB-PPV) which does not show the red-shift of the emission, typical of alkoxy substituted PPVs, such as poly(2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene), MEH-PPV, dominated by the influence of the π-electron rich oxygen atom. We report photoluminescence (PL), quantum efficiencies of approx. 40%, electroluminescence (EL) efficiencies of approx. 0.6 cd/A in 2-layer ITO/PPV/DB-PPV/Ca diodes, and luminances up to 4500 cd/m2.

Original languageEnglish (US)
Pages (from-to)924-925
Number of pages2
JournalSynthetic Metals
Volume102
Issue number1-3
DOIs
StatePublished - Jan 1 1999
EventProceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier
Duration: Jul 12 1998Jul 18 1998

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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