| 학회 | 한국공업화학회 |
| 학술대회 | 2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 | 24권 1호 |
| 발표분야 | 포스터-디스플레이 |
| 제목 | New bipolar host materials using Phenanthro[9,10-d]oxazole moiety for highly efficient red PhOLEDs |
| 초록 | Six new bipolar host materials including phenanthro[9,10-d]oxazole as an electron withdrawing unit and three different amine groups as electron donating units have been designed and synthesized for use in red phosphorescent organic light-emitting diodes (PhOLEDs). The synthesized materials showed PLmax at 397–455 nm and high thermal properties above the decomposition temperature (Td) of 320 ℃. In addition, all six materials showed distinct oxidation-redox peaks as bipolar materials. These six new bipolar host materials are suitable for use in red PhOLEDs due to their triplet energy level (e.g., 2.2–2.5 eV). As a result, when the six new materials were used as host materials for red PhOLEDs, 24.0–29.4 cd/A maximum current efficiency, 16.5–19.3% external quantum efficiency, CIE (0.64, 0.35), and 610 nm ELmax were achieved. |
| 저자 | 강석우, 박종욱 |
| 소속 | 경희대 |
| 키워드 | OLEDs |
