| 학회 |
한국공업화학회 |
| 학술대회 |
2008년 가을 (11/12 ~ 11/14, ICC 제주) |
| 권호 |
12권 2호 |
| 발표분야 |
정보전자소재 |
| 제목 |
High triplet energy phosphine oxide derivatives as host materials for blue phosphorescent organic light emitting diodes |
| 초록 |
We have designed and synthesized a new blue phosphorescent host material based on the phosphine oxide moiety. 2-(diphenylphosphine oxide)-9,9’-spirofluorene (SPPO1) was compared with N,N’-dicarbazolyl-3,5-benzene as a blue host material for blue phosphorescent organic light-emitting devices (PHOLEDs). The triplet energy level of SPPO1 was calculated to be 2.79 eV. The SPPO1 showed much higher quantum efficiency than common mCP host material. A high quantum efficiency of 12.1 % and a current efficiency of 22.3 cd/A was obtained in the blue PHOLED with iridium(III) bis(4,6-(di-fluorophenyl)-pyridinato-N,C2’) picolinate as a blue phosphorescent dopant. |
| 저자 |
전순옥, 육경수, 주철웅, 손효석, 조안나, 이준엽
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| 소속 |
단국대 |
| 키워드 |
phosphine oxide; phosphorescent
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| E-Mail |
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