High‐Efficiency Orange and Tandem White Organic Light‐Emitting Diodes Using Phosphorescent Dyes with Horizontally Oriented Emitting Dipoles
2014; Volume: 26; Issue: 33 Linguagem: Inglês
10.1002/adma.201400330
ISSN1521-4095
AutoresSunghun Lee, Hyun Mu Shin, Jang‐Joo Kim,
Tópico(s)Perovskite Materials and Applications
ResumoTandem white organic light-emitting diodes (WOLEDs) using horizontally oriented phosphorescent dyes in an exciplex-forming co-host are presented, along with an orange OLED. A high external quantum efficiency of 32% is achieved for the orange OLED at 1000 cd m(-2) and the tandem WOLEDs exhibit a high maximum EQE of 54.3% (PE of 63 lm W(-1)).
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