발광 재료용 다이포스핀-다이골드 착물의 합성과 특성 연구

• 영문명: Synthesis and Characteristics of Diphosphine-digold complexes as Light-Emitting Materials
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 김준호(Kim JunHo) 손병청(Sohn ByungChung) 하윤경(Ha YunKyoung)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제19권 제2호, 103~107쪽, 전체 5쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2002.06.30

영문 초록

Diphosphine dinuclear gold(I) complexes were synthesized from the reaction of bridged diphosphines and gold ions. As a bridged diphosphine, 1,2-bis(diphenylphosphino)metbane (dppm) or 1,1 -Bis(diphenylphosphino) ferrocene (dppf) was introduced. As anionic ligands, CI was first coordinated to Au, resulting in (diphosphine)(AuCl)_{2}. Then, the ligand, SPh, was substituted for Cl in the chloride complex to give (diphosphine)(AuSPh)_{2. As a result, three digold complexes, (dppm)(AuCl)_{2}. (I), (dppf)$(AuCl)_{2}. (II), and (dppf)(AuSPh_{2}. (III) were prepared in this study. The thermal properties were investigated at first hand to confirm that the gold complexes were in fact formed. The digold complexes were decomposed above 200^{\circ}C while the ligand, dppm or dppf, melts under 180^{\circ}CThe photoluminescence (PL) spectra of the spin-coated thin films showed the maximum peak at 590, 595, and 540nm for the complex, I, II, and III, respectively. These complexes were found to give the orange color phosphorescence. Therefore, these digold complexes can be candidates for orange-red phosphorescent materials in organic electroluminescent devices (OELD). Further studies on application of the complexes as a dopant in an emitting layer are in progress in our laboratory.

키워드

diphosphine digold complex phosphorescence efficiency OLED