Efficiency improvement and long lifetime of transparent organic light-emitting diodes using 8-hydroxy-quinolinato lithium as passivation layer by thermal annealing

K. P. Na, C. J. Lee, B. K. Ju, J. I. Han

Research output: Contribution to conferencePaper

Abstract

We have developed a transparent passivation layer using 8-hydroxy-quinolinato lithium (Liq) in transparent organic light-emitting devices (TOLEDs). The Liq passivation layer improves the stability of Ca/Ag double layer which have used as a semitransparent cathode, resulting in substantial increase of the efficiency and lifetime by the enhanced luminance because it protects the oxidation of the cathode surface by thermal annealing in the TOLEDs. The passivation layer makes a variety of thick device and is also applicable to wide and flexible display.

Original languageEnglish
Pages1017-1020
Number of pages4
Publication statusPublished - 2008 Dec 1
Event15th International Display Workshops, IDW '08 - Niigata, Japan
Duration: 2008 Dec 32008 Dec 5

Other

Other15th International Display Workshops, IDW '08
CountryJapan
CityNiigata
Period08/12/308/12/5

ASJC Scopus subject areas

  • Hardware and Architecture
  • Human-Computer Interaction
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Na, K. P., Lee, C. J., Ju, B. K., & Han, J. I. (2008). Efficiency improvement and long lifetime of transparent organic light-emitting diodes using 8-hydroxy-quinolinato lithium as passivation layer by thermal annealing. 1017-1020. Paper presented at 15th International Display Workshops, IDW '08, Niigata, Japan.