Efficient Hole-Blocker with Electron Transporting Property and Its Applications in Blue Organic Light-Emitting Devices

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• 作者：Silu Tao ; Shiu Lun Lai ; Junsheng Yu ; Yadong Jiang ; Yechun Zhou ; Chun-Sing Lee ; Xiaohong Zhang ; Shuit-Tong Lee
• 刊名：Journal of Physical Chemistry C
• 出版年：2009
• 出版时间：September 24, 2009
• 年：2009
• 卷：113
• 期：38
• 页码：16792-16795
• 全文大小：244K
• 年卷期：v.113,no.38(September 24, 2009)
• ISSN：1932-7455

文摘

An aluminum complex, tri-(2-(2-hydroxyphenyl) benzoxazole) aluminum (AlLO₃), has been synthesized and applied as an electron-transporting hole-blocker in organic light-emitting devices (OLEDs). Electron-transporting and hole-blocking properties of the compound have been investigated in detail. Performance of the blue OLEDs based on AlLO₃ is considerably better than that of the devices based on tris-(8-quinolinolato) aluminum (Alq₃), 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), and 2,2′,2′′-(Benzene-1,3,5-triyl)-tris(1-phenyl-1H-benzimidazole) (TPBI) with a similar device structure.