Top emission organic light-emitting devices with CsCl capping layer

Dae Gyu Moon, Chan Jae Lee, Jeong In Han

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

We have developed top emission organic light-emitting devices using a CsCl capping layer on top of semitransparent Ca/Ag cathode. By using a CsCl capping layer, the transmittance of top electrode can be improved by 93%. While the electrical conduction characteristic of device is not influenced by the capping layer, the current efficiency increases with increasing the transmittance of Ca/Ag/CsCl cathode. For example, as the transmittance of top electrode increases from 55 to 91% by varying CsCl thickness, the current efficiency of green fluorescent top-emitting device increases from 8 to 18 cd/A.

Original languageEnglish
Pages (from-to)2793-2795
Number of pages3
JournalThin Solid Films
Volume518
Issue number10
DOIs
StatePublished - 1 Mar 2010

Keywords

  • Capping layer
  • Cesium Chloride
  • Organic light-emitting device
  • Top emission
  • Transparent cathode

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