| 3 | 1,3-Diphenyl-5-(9-phenanthryl)-2-pyrazoline (DPPhP): An Excellent Hole-Transport Material for Use in Organic Light-Emitting Diodes显示文摘b Département de Physique, Ecole Polythechnique Fédérale de Lausanne, EPFL, Lausanne, Switzerland c Department of Chemistry, Tsinghua University, Beijing 100084, China An excellent hole-transport material, 1,3-diphenyl-5-(9-phenanthryl)-2-pyrazoline (DPPhP) for OLEDs was studied. This compound not only offers high glass transition temperature (T g=96 ℃), good film forming ability, and high HOMO energy level, but also displays excellent hole-transport property. The electroluminescent device with a simple structure of ITO/DPPhP (60 nm)/AlQ (60 nm)/LiF (0.8 nm)/Al shows an external quantum efficiency as high as 1.6%. | 马昌期 张联齐 周家宏 王雪松 张宝文 曹怡 BUGNON P SCHAER M NESCH F 张德强 邱勇 | 2002 | Chinese Journal of Chemistry2002，20，10： | 1 |
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