Control of colour and charge injection in conjugated dendrimer polypyridine bilayer LEDs

M Halim, Ifor David William Samuel, JN Pillow, AP Monkman, PL Burn

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

Conjugated dendrimers are an interesting class of materials for light emitting diodes, and can be used either as light-emitting or charge-transporting layers. We report a study of the use of a solution-processible dendrimer with distyrylbenzene core and stilbene dendrons. We find that its use in bilayer LEDs with polypyridine gives efficiencies ten times greater than for single layer polypyridine LEDs. The light emission can be either from the polypyridine or the dendrimer layer, depending on the layer thicknesses. This offers a way of tuning the colour of bilayer LEDs.

Original languageEnglish
Pages (from-to)1571
Number of pages1571
JournalSynthetic Metals
Volume102
Publication statusPublished - Jun 1999

Keywords

  • conjugated polymers
  • dendrimers
  • light-emitting diodes
  • poly(p-pyridine)
  • bilayer
  • LIGHT-EMITTING-DIODES
  • ELECTROLUMINESCENT DIODES
  • POLY(P-PYRIDINE)
  • POLYMERS

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