Electrical simulations of doped multilayer organic light-emitting diodes (OLEDs) under temperature stress for high current densities

Christophe Pinot, Hélène Cloarec, Henri Doyeux, Günther Haas, Tony Maindron, Christophe Prat, David Vaufrey, Yvan Bonnassieux

Research output: Contribution to journalArticlepeer-review

Abstract

This work aims at explaining and predicting the influence of the thickness of organic materials, dye doping, and space-charge effects on charge-carrier transport at different operating temperatures for high current densities (50 ≤ J ≤ 7000 mA/cm2). For the purpose of determining these influences, current-voltage characteristics for typical electrically doped multilayer organic light-emitting diodes (OLEDs) have been simulated. The results of the simulations concur with experimental data.

Original languageEnglish
Pages (from-to)457-464
Number of pages8
JournalJournal of the Society for Information Display
Volume16
Issue number3
DOIs
Publication statusPublished - 1 Mar 2008

Keywords

  • Doping
  • Electrical modeling
  • Finite elements
  • OLED
  • Space charge

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