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

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• 作者：Jau-Jiun Huang ; Man-kit Leung ; Tien-Lung Chiu ; Ya-Ting Chuang ; Pi-Tai Chou ; Yu-Hsiang Hung
• 刊名：Organic Letters
• 出版年：2014
• 出版时间：October 17, 2014
• 年：2014
• 卷：16
• 期：20
• 页码：5398-5401
• 全文大小：263K
• ISSN：1523-7052

文摘

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%.