CAJ | 학술논문

所研究的有机电致磷光发光器件(OLED)选用了一种新型金属铱的化合物Ir(C6)2(acac),这种金属化合物由配位体香豆素C6和乙酰丙酮(acac)与金属铱化合形成.Ir(C6)2(acac)可同时作为电子传输材料和发光掺杂剂.比较香豆素C6和Ir(C6)2(acac)固体材料的光致发光谱,可见Ir(C6)2(acac)明显抑制了有机电致发光材料分子与分子之间的发光猝灭效应.采用ITO/TPD (N,N′-diphenyl- N,N′-bis (3-methyl-phenyl)-1,1′biphenyl-4,4′diamine)/Ir(C6)2(acac)/BAlq(bis(2-methyl-8-quinolinolato-N1,O8)-(1,1′-biphenyl-4-olato) aluminum)/Alq3 aluminum/Liq(8-hydroxyquinoline lithium)/Al结构, 可得到CIE (Commission Interationale d′Eclairage)值为x=0.43; y=0.40的橙红色发光器件,最高亮度可达3 390 cd/m2,最大电流效率为1.3 cd/A.采用同样的器件结构以Ir(C6)2(acac)掺杂Alq3主体得到绿色发光器件,发光色的CIE坐标值为 x=0.29; y=0.58,最高亮度可达8 832 cd/m2,最大电流效率为5.6 cd/A .器件的发光机理研究表明Ir(C6)2(acac)的非掺杂器件发光以Ir(C6)2(acac)的三线态磷光为主,器件发光为橙色;在Alq3中的单掺杂器件以Alq3和Ir(C6)2(acac)的荧光为主,同时有小比例Ir(C6)2(acac)的三线态磷光成分存在,器件总体发光为绿色.
소연구적유궤전치린광발광기건(OLED)선용료일충신형금속의적화합물Ir(C6)2(acac),저충금속화합물유배위체향두소C6화을선병동(acac)여금속의화합형성.Ir(C6)2(acac)가동시작위전자전수재료화발광참잡제.비교향두소C6화Ir(C6)2(acac)고체재료적광치발광보,가견Ir(C6)2(acac)명현억제료유궤전치발광재료분자여분자지간적발광졸멸효응.채용ITO/TPD (N,N′-diphenyl- N,N′-bis (3-methyl-phenyl)-1,1′biphenyl-4,4′diamine)/Ir(C6)2(acac)/BAlq(bis(2-methyl-8-quinolinolato-N1,O8)-(1,1′-biphenyl-4-olato) aluminum)/Alq3 aluminum/Liq(8-hydroxyquinoline lithium)/Al결구, 가득도CIE (Commission Interationale d′Eclairage)치위x=0.43; y=0.40적등홍색발광기건,최고량도가체3 390 cd/m2,최대전류효솔위1.3 cd/A.채용동양적기건결구이Ir(C6)2(acac)참잡Alq3주체득도록색발광기건,발광색적CIE좌표치위 x=0.29; y=0.58,최고량도가체8 832 cd/m2,최대전류효솔위5.6 cd/A .기건적발광궤리연구표명Ir(C6)2(acac)적비참잡기건발광이Ir(C6)2(acac)적삼선태린광위주,기건발광위등색;재Alq3중적단참잡기건이Alq3화Ir(C6)2(acac)적형광위주,동시유소비례Ir(C6)2(acac)적삼선태린광성분존재,기건총체발광위록색.