| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Iridium (III) Complexes Containing the Electron Withdrawing/Donating groups for Efficient Green Phosphorescent Organic Light-Emitting Diodes |
| 초록 |
Three cyclometalated iridium (III) complexes with different functional groups substituted ligands, in particularly trifluoromethyl (-CF3) and methoxy (-OCH3) substituted on the main ligands, bis(2-ethylhexyl)-8-benzo[c][1,5]naphthyridin-6(5H)-one (EH-BNO) as a cyclometalated main ligand and 2-picolinic acid as the ancillary ligand. Three iridium complexes were prepared and their photoluminescence, thermal and electrochemical analysis are investigated. Their corresponding emission peaks at 513, 504 and 513 nm were observed at room temperature, respectively. These iridium complexes are utilized for green PHOLEDs with an identical device configuration. The high-performance solution-process PHOLEDs based on Ir-1 complex exhibit a maximum external quantum efficiency (EQE) of 21.11% and a maximum current efficiency (CE) of 74.88 cd/A. Additionally, Ir-2 and Ir-3 exhibit low efficient roll-off, with EQEmax of 18.22% and an EQEmax of 16.75% at 1000 cdm-2. |
| 저자 |
라자 쿠마레즌1, 아티싼 마헤쉬와란1, 제갈영순2, 진성호1
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| 소속 |
1부산대, 2경일대 |
| 키워드 |
PHOLED; Green; Iridium (III) Complexes
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| E-Mail |
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