A high-performance tandem white organic light-emitting diode combining highly effective white-units and their interconnection layer
- 1 April 2009
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 105 (7), 076101
- https://doi.org/10.1063/1.3106051
Abstract
By utilizing 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline: Li / MoO 3 as an effective charge generation layer (CGL), we extend our recently demonstrated single-emitting-layer white organic light-emitting diode (WOLED) to realize an extremely high-efficiency tandem WOLED. This stacked device achieves maximum forward viewing current efficiency of 110.9 cd/A and external quantum efficiency of 43.3% at 1 μ A / cm 2 and emits stable white light with Commission Internationale de L’Eclairage coordinates of (0.34, 0.41) at 16 V. It is noted that the combination of effective single units and CGL is key prerequisite for realizing high-performance tandem WOLEDs.Keywords
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