Orthogonally Substituted Benzimidazole-Carbazole Benzene As Universal Hosts for Phosphorescent Organic Light-Emitting Diodes
作者： Jau-Jiun Huang , Yu-Hsiang Hung , Pei-Ling Ting , Yu-Ning Tsai , Huan-Jie Gao
DOI: 10.1021/ACS.ORGLETT.5B03631
关键词:
摘要: The novel ambipolar hosts of o-CbzBz and o-DiCbzBz contain carbazole benzimidazole through an ortho-connection. orthogonal conformations cause the triplet state to be confined at units secure efficient energy transfer. phosphorescent organic light-emitting diodes (PhOLEDs) show a high current efficiency, power low efficiency roll-off. can used as host for sky-blue, green, orange-red PhOLEDs, giving 57.5, 78.4, 60.3 cd/A, respectively.
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