Electrochemical models for the radical annihilation reactions in organic light-emitting diodes

Neal R. Armstrong, Jeff Anderson, Paul Lee, Erin McDonald, R. Mark Wightman, Hank K. Hall, Tracy Hopkins, Anne Padias, S. Thayumanavan, Steve Barlow, Seth Marder

Research output: Contribution to journalConference article

4 Scopus citations

Abstract

Bilayer organic light emitting diodes (OLED), based upon vacuum deposited molecules, or single layer OLEDs, based upon spin-cast polymeric materials, doped with these same molecules, produce light from emissive states of the lumophores which are created through annihilation reactions of radical species, which can be modeled through solution electrochemistry. Differences seen in solution reduction and oxidation potentials of molecular components of OLEDs are a lower limit estimate to the differences in energy of these same radical species in the condensed phase environment. The light emitted from an aluminum quinolate (Alq3)/triarylamine (TPD)-based OLED, or an Alq3/PVK single layer OLED, can be reproduced from solution cross reactions of Alq3/TPD.

Original languageEnglish (US)
Pages (from-to)178-187
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3476
StatePublished - Dec 1 1998
EventProceedings of the 1998 Conference on Organic Light-Emitting Materials and Devices II - San Diego, CA, USA
Duration: Jul 21 1998Jul 23 1998

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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    Armstrong, N. R., Anderson, J., Lee, P., McDonald, E., Wightman, R. M., Hall, H. K., Hopkins, T., Padias, A., Thayumanavan, S., Barlow, S., & Marder, S. (1998). Electrochemical models for the radical annihilation reactions in organic light-emitting diodes. Proceedings of SPIE - The International Society for Optical Engineering, 3476, 178-187.