ScholarWorks: Efficient blue phosphorescent host through nonbonded conformational locking interactions

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Energy Recognition

Research Interests

Energy transfer, organic solar cells, supercapacitor, ultrasonic spray chemistry, dithienothiophene, iridium complexes, phosphorescent bioapplications

Efficient blue phosphorescent host through nonbonded conformational locking interactions

Cited 6 times in thomson ci

Cited 5 times in thomson ci

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Title: Efficient blue phosphorescent host through nonbonded conformational locking interactions

Author: Kwon, Jongchul; Kwon, Tae-Hyuk; Cho, Hyo Soon; Kim, Myoung Ki; Shin, Ik-Soo; Shin, Dae-Yup; Park, Su Jin; Hong, Jong-In

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.