화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2018년 봄 (05/02 ~ 05/04, 대구 엑스코(EXCO))
권호 22권 1호
발표분야 디스플레이_포스터
제목 Synthesis, Characterization, and Device Fabrication of Homoleptic Phenylimidazolinato Ir(III) Complexes Geometrically Confined with Bulky m-Terphenyl Group
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. 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, 김진형, 이승준, 김철훈, 강상욱, 손호진
소속 고려대
키워드 Ir complex
E-Mail