| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Phosphorescent Phenylimidazolinato Iridium(III) Complexes with Bulky Terphenyl Moiety: Synthesis, Structure, and Photophysics |
| 초록 |
Series of six terphenyl-modified phenylimidazolinato Ir(III) complexes with various substituents at 4-position of phenyl ring and 5-position of terphenyl ring were prepared. We have come up with the idea of implementing sterically bulky ligand that can help the metal-centered triplet state unstable; this brings us to use the terphenyl ligands. It was found that the bulkiness control of substituent on imidazole ring plays an important role in emission behavior of Ir-complexes. For example, the iridium complexes bearing bulky terphenyl group exhibited higher quantum yield. We performed theoretical quantum chemical calculations and measured experimental temperature dependent emission lifetime to explain the importance of bulky substitution in designing blue emissive Ir(III)-complex. Implications of the present observations and mechanism are discussed in detail. |
| 저자 |
곽수진, 김소연, 조양진, 김진형, 이승준, 김철훈, 강상욱, 손호진
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| 소속 |
고려대 |
| 키워드 |
Iridium |
| E-Mail |
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