학회 | 한국공업화학회 |
학술대회 | 2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터) |
권호 | 18권 1호 |
발표분야 | 포스터-정보.전자소재 |
제목 | Synthesis of carbazole and phosphine oxide derivative as a host material for deep blue phosphorescent organic light-emitting diodes |
초록 | A high triplet energy of bipolar host material with substituent at 3-position of carbazole was simply synthesized as one step. Phenylbis(9-phenyl-9H-carbazol-3-yl)phosphine oxide (3DCPO) showed a high triplet energy of 3.01eV, which was high enough for deep blue phosphorescent organic light-emitting diodes. The 3DCPO host material showed high thermal stability(Tg, 133 ℃), low turn on voltage(3.5V), and high external quantum efficiency of 18.8% at 3% doping concentration. |
저자 | 김명곤, 이준엽 |
소속 | 단국대 |
키워드 | oled; deep blue; phosphorescent; host |