Influence of molecular structure on the properties of dendrimer light-emitting diodes

Thomas Anthopoulos, Jonathan P.J. Markham, Ebinazar B. Namdas, Justin R. Lawrence, Ifor D.W. Samuel, Shih Chun Lo, Paul L. Burn*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

Iridium-based phosphorescent dendrimers have shown much promise as highly efficient light emitting materials for organic light emitting diodes (OLEDs). Here we report the effects of modifying the chemical structure on the emissive and charge transport properties of Ir(ppy)3 based electrophosphorescent dendrimers. We investigate a novel para linked first generation (G1) iridium dendrimer. This material is compared to G1 and G2 meta linked dendrimers. We show that by blending these dendrimers into a CBP host, high external quantum efficiencies of over 10% and luminous efficiencies of 27 lm/W can be achieved.

Original languageEnglish (US)
Pages (from-to)71-76
Number of pages6
JournalOrganic Electronics
Volume4
Issue number2-3
DOIs
StatePublished - Jan 1 2003

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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