Relationship between exciton recombination zone and applied voltage in organic light-emitting diodes

Jingang Hao, Zhenbo Deng*, Shengyi Yang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

In this paper, the relationship between exciton recombination zone and applied voltage in organic light-emitting diodes (OLEDs) ITO/NPB (40 nm)/Alq3(w nm)/rubrene(3 nm)/Alq3(50-w)/Al, in which a 3 nm rubrene as sensing layer is inserted in Alq3 layer at different depth, is studied. By comparing the electroluminescence (EL) spectra of device driven under different applied voltages, a conclusion can be drawn that the recombination zone shifts logarithmically with increasing applied voltages.

Original languageEnglish
Pages (from-to)108-111
Number of pages4
JournalDisplays
Volume27
Issue number3
DOIs
Publication statusPublished - Jul 2006
Externally publishedYes

Keywords

  • OLED
  • Recombination zone
  • Sensing layer
  • Ultra-thin layer

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