High efficiency yellow fluorescent organic light emitting diodes based on m-MTDATA/BPhen exciplex
作者： Liping Zhu , Kai Xu , Yanping Wang , Jiangshan Chen , Dongge Ma
DOI: 10.1007/S12200-015-0492-0
关键词:
摘要: High efficient yellow organic light emitting diodes (OLEDs) based on exciplex were reported. The was formed by 4, 4' ,4 ''-tris (3-methylphenyl (phenyl) amino)-triphenylamine (m-MTDATA) and 7- diphenyl-1, 10-phenanthroline (BPhen). resulting OLEDs exhibited an external quantum efficiency of over 7%, which is attributed to the effective energy back transfer from triplet state singlet state. maximum power 25 lm/W achieved. Doping a phosphor Ir(bt)2(acac) into m-MTDATA: BPhen blend, high device achieved with turn-on voltage 2.1 V, 86.1 20.7%, respectively.
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