| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 봄 (04/12 ~ 04/13, 제주 ICC) |
| 권호 |
32권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Color-tuned Phosphorescence of Heteroleptic Ir(III) Complexes: the Mechanism and Application to a White-Phosphorescent Polymer System |
| 초록 |
Cyclometalated Ir(III) complexes have been gaining ever increasing attention due to their high electrophosphorescence device efficiency. Especially, in order to archive full-color emitting devices, it has been of great importance to establish a well-tailored phosphorescence color-tuning methodology. We have characterized a series of highly phosphorescent cyclometalated heteroleptic Ir(III) complexes containing emitting (chromophoric) ancillary ligands. We directly observed relatively rapid (ca. 6-7 ns-1) exothermic inter-ligand energy transfer (ILET) from the cyclometalating ligand to the emitting ancillary ligand, which afforded a novel strategy of emission color tuning. Additionally, facile and efficient generation of white phosphorescence was demonstrated by exploring the ILET process in a mixture of heteroleptic Ir(III) complexes in a polymeric host. |
| 저자 |
유영민1, 김길석2, 안태규2, 김동호2, 박수영1
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| 소속 |
1서울대, 2연세대 |
| 키워드 |
OLED; 이리듐 착체; 인광; 에너지 전달
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| E-Mail |
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