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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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Efficient blue phosphorescent host through nonbonded conformational locking interactions

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Title
Efficient blue phosphorescent host through nonbonded conformational locking interactions
Author
Kwon, JongchulKwon, Tae-HyukCho, Hyo SoonKim, Myoung KiShin, Ik-SooShin, Dae-YupPark, Su JinHong, Jong-In
Keywords
LIGHT-EMITTING DEVICES; ORGANIC ELECTROPHOSPHORESCENCE; ENERGY-TRANSFER; DIODES
Issue Date
2008-08
Publisher
ROYAL SOC CHEMISTRY
Citation
NEW JOURNAL OF CHEMISTRY, v.32, no.8, pp.1368 - 1372
Abstract
We developed a new host material TCTEB with a conformationally homogeneous, sterically bulky structure due to nonbonded interactions between adjacent methylene groups. The host presented good thermal stability (Tg = 122°C and Td = 321°C) and high triplet energy (3.0 eV). The maximum quantum efficiency, current efficiency and power efficiency of the OLED device using the TCTEB host were 8.5%, 13.7 cd A-1, and 11.3 lm W-1, respectively, when doped with 8 wt% FIrpic.
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DOI
10.1039/b714231c
ISSN
1144-0546
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PHY_Journal Papers
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