Journal
ADVANCED MATERIALS
Volume 22, Issue 22, Pages 2468-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201000061
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Funding
- Ministry of Economy of the Republic of China [95-EC-17-A-08-S1-042]
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The bipolar host material BCPO (bis-4-(N-carbazolyl)phenylphosphine oxide) containing a phosphine oxide and two carbazole groups, synthesized in three steps, shows a high triplet energy gap of 3.01 eV. The material can be used as a universal host for blue, green, and red phosphorescent devices, all giving extremely high efficiencies with turn-on voltages within 3 V.
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