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Kwon, Tae-Hyuk
Energy Recognition
Research Interests
  • Energy transfer, organic solar cells, supercapacitor, ultrasonic spray chemistry, dithienothiophene, iridium complexes, phosphorescent bioapplications

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A bipolar host containing 1,2,3-triazole for realizing highly efficient phosphorescent organic light-emitting diodes

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Title
A bipolar host containing 1,2,3-triazole for realizing highly efficient phosphorescent organic light-emitting diodes
Author
Kim, Myoung KiKwon, JongchulKwon, Tae-HyukHong, Jong-In
Keywords
ENERGY-TRANSFER; ELECTROLUMINESCENT DEVICES; BLUE; CONFINEMENT; EMISSION
Issue Date
2010-07
Publisher
ROYAL SOC CHEMISTRY
Citation
NEW JOURNAL OF CHEMISTRY, v.34, no.7, pp.1317 - 1322
Abstract
We have developed a novel host material, 9,9′-(2-((4-phenyl-1,2,3- triazol-1-yl)methyl)biphenyl-4,4′-diyl)biscarbazole (CBP-TA), for realizing highly efficient blue phosphorescent OLEDs. The maximum external quantum efficiency of the OLED device developed using CBP-TA doped with a blue phosphorescent material was 30% greater than that of a CBP-based device. This enhanced external quantum efficiency resulted from the bipolar properties of the new host, owing to which well-balanced hole and electron transport through the emitting layer was achieved. The excellent bipolar carrier transport properties of the new host were experimentally verified using various OLED device data.
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DOI
10.1039/c0nj00091d
ISSN
1144-0546
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PHY_Journal Papers
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