Journal
CHEMICAL COMMUNICATIONS
Volume 49, Issue 60, Pages 6788-6790Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cc42569j
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Funding
- National Research Foundation of Korea [NRF2012R1A2A1A01008797]
- Key Research Institute Program [NRF20120005860]
- LG display Co. Limited
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A novel bipolar host 9-(4-(9H-pyrido[2,3-b]indol-9-yl)phenyl)-9H-3,9'-bicarbazole (pBCb2Cz) was prepared for high efficiency blue phosphorescent organic light-emitting diodes (PhOLEDs), a high triplet energy (ET) material, employing electron-deficient alpha-carboline. pBCb2Cz (E-T = 2.93 eV) was effective as a host material for FIrpic- and FCNIrpic-based blue PhOLEDs, and highest quantum efficiencies of 23.0 and 16.2%, respectively, were achieved.
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