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

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 - 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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