| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Synthesis and Characterization of Novel Deep-Blue Phosphorescent Iridium Complexes with Picolinic acid N-Oxide as the Ancillary Ligand for High Efficiency Organic Light-Emitting Diode Applications |
| 초록 |
A new series of highly efficient deep-blue emitting phosphorescent Ir(III) complexes, (F2ppy)2Ir(pic-N-oxide)and(F2CF3ppy)2Ir(pic-N-oxide),based on phenylpyridine (ppy) main ligand and picolinic acid N-oxide (pic-N-O) ancillary ligand, were synthesized for phosphorescent organic light-emitting diodes (PhOLEDs), and their photophysical, electrochemical, and electroluminescent (EL) properties were investigated. All of the Ir(III) complexes form high quality amorphous thin films by thermal evaporation and the energy levels can be easily adjusted by the introduction of different electron donating. The Ir(III) complexes show high phosphorescent quantum yields. Remarkably, high performance PhOLEDs were fabricated using Ir(III) complexes with a pic-N-oxide ancillary ligand as the emitter and showed bright emission with excellent deep-blue CIE coordinates with an external quantum efficiency of 23.3 % , current efficiency of 36 cd/A, and high power efficiency of 17.3 lm/W. |
| 저자 |
임민정1, 진성호1, 서회주1, 박진수1, 송명관1, 김영인1, 김장주2
|
| 소속 |
1부산대, 2서울대 |
| 키워드 |
OLED; PhOLEDs
|
| E-Mail |
|
