화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2017년 가을 (10/11 ~ 10/13, 제주컨벤션센터)
권호 42권 2호
발표분야 분자전자 부문위원회 I
제목 Dynamic Behavior of Long lifetime Iridium Compounds with Bulky Substituents
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 and synthesized two structurally similar iridium complexes of phenylimidazole-based ligand with different substituents and conjugation degree. 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. Our research shows that the complexes bearing bulky substituent such as terphenyl groups, exhibit higher quantum yield. Indeed substitution on imidazole ring with terphenyl group plays an important role in order to show efficient emission with blue phosphorescence.
저자 윤보선, 김소연, 김진형, 박재현, 강상욱, 손호진
소속 고려대
키워드 Ir complex; Bulky substituents; long lifetime
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