Phenylcarbazole‐Based Phosphine Oxide Host Materials For High Efficiency In Deep Blue Phosphorescent Organic Light‐Emitting Diodes
Phenylcarbazole‐Based Phosphine Oxide Host Materials For High Efficiency In Deep Blue Phosphorescent Organic Light‐Emitting Diodes
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DOI：
10.1002/adfm.200901274
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发表时间：
2009-11
影响因子：
19
通讯作者：
S. Jeon;K. Yook;C. Joo;Jun Yeob Lee
中科院分区：
文献类型：
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作者：
S. Jeon;K. Yook;C. Joo;Jun Yeob Lee
采用新型苯基咔唑基氧化膦主体材料（PPO1和PPO2）制备了高效的深蓝磷光有机发光二极管。在PPO1和PPO2中以15%的掺杂浓度掺杂深蓝色磷光掺杂剂tris（（3,5‐二氟‐4‐氰苯基）吡啶）铱，获得了18.4%的高量子效率，色坐标为（0.14,0.15）。
Highly efficient deep blue phosphorescent organic light‐emitting diodes are developed using novel phenylcarbazole‐based phosphine oxide host materials (PPO1 and PPO2). A deep blue phosphorescent dopant, tris((3,5‐difluoro‐4‐cyanophenyl)pyridine) iridium, is doped into PPO1 and PPO2 at a doping concentration of 15% and a high quantum efficiency of 18.4% is obtained with color coordinates of (0.14, 0.15).