한국정보디스플레이학회:학술대회논문집
- 2007.08a
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- Pages.663-666
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- 2007
Highly Efficient Red Phosphorescent OLEDs Employing a Multifunctional Oligofluorene Host
- Tsai, Ming-Han (Department of Electrical Engineering and Graduate Institute of Electro-optical Engineering, National Taiwan University) ;
- Su, Hai-Ching (Department of Electrical Engineering and Graduate Institute of Electro-optical Engineering, National Taiwan University) ;
- Wu, Chung-Chih (Department of Electrical Engineering and Graduate Institute of Electro-optical Engineering, National Taiwan University) ;
- Wong, Ken-Tsung (Department of Chemistry, National Taiwan University) ;
- Li, Wen-Ren (Department of Chemistry, National Central University)
- Published : 2007.08.27
Abstract
High-efficiency red phosphorescent OLEDs employing a novel red emitter and a multifunctional oligofluorene host are reported. With qazIr(acac) as the red phosphorescent dopant, a maximum external quantum efficiency of 19% and maximum power efficiency of 11 lm/W are achieved. In addition, single layer devices using such host and dopant materials have efficiencies up to 13%.