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 conferencePaperpeer-review

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
StatePublished - 2008
Event15th International Display Workshops, IDW '08 - Niigata, Japan
Duration: 3 Dec 20085 Dec 2008

Conference

Conference15th International Display Workshops, IDW '08
Country/TerritoryJapan
CityNiigata
Period3/12/085/12/08

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