期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 20, 期 18, 页码 5317-5326出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201303522
关键词
aggregation-induced emission; blue emitters; luminescence; organic light-emitting diodes; tetraphenylethene
资金
- National Fundamental Key Research Program [2013CB834701]
- National Natural Science Foundation of China [21161160556, 61106017]
Two aggregation-induced emission active luminogens (TPE-pTPA and TPE-mTPA) were successfully synthesized. For comparison, another six similar compounds were prepared. Because of the introduced hole-dominated triphenylamine (TPA), fluorene groups with high luminous efficiency, and unconjugated linkages, the conjugation length of the obtained luminogens is effectively restricted to ensure their blue emission. The undoped organic light-emitting diodes based on TPE-pTPA and TPE-mTPA exhibited blue or deep-blue emissions, low turn-on voltages (3V), and high electroluminescence efficiencies with L-max, (C,max), and (P,max) values of up to 26697cdm(-2), 3.37cdA(-1), and 2.40LmW(-1).
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