Unified analysis of transient and steady-state electroluminescence - Establishing an analytical formalism for OLnce

Kyle W. Hershey, Russell J. Holmes

Research output: Contribution to journalConference articlepeer-review

Abstract

Organic light-emitting devices (OLEDs) can exhibit an efficiency rotlrdfft under high current excitation that has been previously modeled using bhaolecular quenching. The corresponding transient electroluminescence behavior has not been as effectively treated Here, we reproduce both the steady-state and transient regimes by introducing into the analysis a dynamic polaron population. This approach permits a rigorous definition of OLED charge balance in terms of dynamics as the exciton formation efficiency.

Original languageEnglish (US)
Pages (from-to)115-118
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume48
Issue number1
DOIs
StatePublished - 2017
EventSID Symposium, Seminar, and Exhibition 2017, Display Week 2017 - Los Angeles, United States
Duration: May 21 2017May 26 2017

Bibliographical note

Funding Information:
This work was supported by The Dow Chemical Company. The authors acknowledge useful discussions with Dr. D. Wayne Blaylock. R.J.H. is a member of the Dow Chemical Company Technical Advisory Board.

Publisher Copyright:
© (2017) by SID-the Society for Information Display. All rights reserved.

Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.

Keywords

  • Charge balance
  • Efficiency roll-off
  • Exciton formation
  • Exciton-exciton annihilation
  • Exciton-polaron quenching
  • Oleds
  • Phosphorescence
  • Quenching

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