Novel Benzimidazole Derivatives as Electron-Transporting Type Host To Achieve Highly Efficient Sky-Blue Phosphorescent Organic Light-Emitting Diode (PHOLED) Device

The development of benzimidazole substituted biphenyls as electron-transporting hosts for bis[2-(4,6-difluoro­phenyl)­pyridinato-C2,N]­(picolinato)­iridium(III) is reported. Under the optimized conditions, the organic light-emitting diode (OLED) achieves the maximum current efficiency of 57.2 cd/A,...

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Bibliographic Details
Published in:Organic letters 2014-10, Vol.16 (20), p.5398-5401
Main Authors: Huang, Jau-Jiun, Leung, Man-kit, Chiu, Tien-Lung, Chuang, Ya-Ting, Chou, Pi-Tai, Hung, Yu-Hsiang
Format: Article
Language:English
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Summary:The development of benzimidazole substituted biphenyls as electron-transporting hosts for bis[2-(4,6-difluoro­phenyl)­pyridinato-C2,N]­(picolinato)­iridium(III) is reported. Under the optimized conditions, the organic light-emitting diode (OLED) achieves the maximum current efficiency of 57.2 cd/A, power efficiency of 50.4 lm/W, and external quantum efficiency 25.7%.
ISSN:1523-7060
1523-7052
DOI:10.1021/ol502602t