New Bipolar Green Host Materials Containing Benzimidazole-Carbazole Moiety in Phosphorescent OLEDs

…, EK Kim, IM El-Deeb, SJ Jung, DH Choi…

Index: Park, Jung Hwan; Kim, Eun Kyung; El-Deeb, Ibrahim M.; Jung, Su Jin; Choi, Dae Hyuk; Kim, Dong-Ha; Yoo, Kyung Ho; Kwon, Jang Hyuk; Lee, So Ha Bulletin of the Korean Chemical Society, 2011 , vol. 32, # 3 p. 841 - 846

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Citation Number: 8

Abstract

Abstract New green host materials, 9-phenyl-3-(4-(1-phenyl-1H-benzo [d] imidazol-2-yl) phenyl)-9H-carbazole (3a) and 9-(naphthyl-2-yl)-3-(4-(1-phenyl-1H-benzo [d] imidazol-2-yl) phenyl)-9H-carbazole (3b), have been designed and synthesized by attaching the electron transporting benzimidazole moiety to the hole transporting carbazole unit. These compounds have similar HOMO, LUMO levels and band-gap characteristics compared ...