한국정보디스플레이학회:학술대회논문집
- 2008.10a
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- Pages.925-927
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- 2008
Novel host and electron blocking materials for efficient and long lifetime phosphorescent OLEDs
- Vestweber, Horst (Merck KGaA) ;
- Gerhard, Anja (Merck KGaA) ;
- Kaiser, Joachim (Merck KGaA) ;
- Heil, Holger (Merck KGaA) ;
- Kroeber, Jonas (Merck KGaA) ;
- Pflumm, Christof (Merck KGaA) ;
- Stoessel, Philipp (Merck KGaA) ;
- Joosten, Dominik (Merck KGaA) ;
- Buesing, Arne (Merck KGaA) ;
- Fortte, Rocco (Merck KGaA) ;
- Parham, Amir (Merck KGaA) ;
- Boehm, Edgar (Merck KGaA)
- Published : 2008.10.13
Abstract
In order to improve the performance in green phosphorescent OLED devices, Merck has developed novel host and electron blocking materials. The newly developed host materials improve the device lifetime by a factor of 3. The newly developed electron blocking materials having not only electron but also exciton barrier properties increase the efficiency of the device by a factor of 1.4. Comparable results were achieved in phosphorescent red systems with further host materials.