Study on the electrical qualities of OLED with various thicknesses of the emissive layer

L. Chen, J. Q. Zhao, S. J. Xie

Research output: Contribution to journalConference articlepeer-review

Abstract

A numerical method was used to solve the bipolar injection problems for the multilayer organic light emitting diodes. The drifting motion of carriers under electric field and Langevin recombination in the emissive layer were considered, and the interface properties were quantified as ratio of injection to total current intensities. The electrical properties were analyzed with various thicknesses of the ETL, EML and HTL. The results show that the thickness of the EML plays an important role in the electric current and luminescent efficiency. To improve the luminescent efficiency, the thickness of the HTL or EML should be reduced. The reduction of the EML will significantly improve the performance of the multilayer OLEDs.

Original languageEnglish
Article number60300B
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume6030
DOIs
StatePublished - 2006
EventICO20: Display Devices and Systems - Changchun, China
Duration: 21 Aug 200526 Aug 2005

Keywords

  • Electrical properties
  • Organic light emitting diodes
  • The emissive layer

Fingerprint Dive into the research topics of 'Study on the electrical qualities of OLED with various thicknesses of the emissive layer'. Together they form a unique fingerprint.

Cite this