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, J. L. Bredas

Research output: Contribution to journalConference articlepeer-review

26 Scopus citations


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
Issue number1-3
StatePublished - 1999
Externally publishedYes
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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