一种含载流子传输基的铱配合物：合成及深黄色电致磷光器件(英文)  

Iridium Complex Containing Carrier Transport Moieties:Synthesis and Deep Yellow Electrophosphorescence Devices

作　　者：刘坚[1] 韦春[2] 

机构地区：[1]新余学院新能源科学与工程学院,新余338004 [2]桂林理工大学材料科学与工程学院,桂林541004

出　　处：《无机化学学报》2012年第2期398-404,共7页Chinese Journal of Inorganic Chemistry

摘　　要：合成了一种含有载流子传输基新的铱配合物(BPPBI)2Ir(ECTFBD)[HBPPBI:1-苯基-2-(4-联苯基)苯并咪唑,HECTFBD:1-(9-乙基-3-咔唑基)-4,4,4-三氟-1,3-丁二酮],其结构和组成经核磁共振氢谱和元素分析所证实。研究了这种铱配合物二氯甲烷溶液的光物理和电化学性质。制作了基于这种铱配合物的电致磷光器件。器件结构是ITO/MoO3(10 nm)/NPB(80 nm)/CBP:x%(BPPBI)2Ir(ECTFBD)(20 nm)/TPBi(45 nm)/LiF/Al[x%:质量百分比为4%和7%的掺杂浓度;NPB:N4,N4′-二(1-萘基)-N4,N4′-二苯基-4,4′-联苯二胺,CBP:4,4′-二(9-咔唑基)联苯,TPBi:1,3,5-三(2-(1-苯基)苯并咪唑基)苯]。这些器件显示出深黄色的发射。对于7%掺杂浓度器件,最大的电流效率和最大发光亮度分别是5.2 cd.A-1和8 690 cd.m-2。A novel Ir-complex（BPPBI）2Ir（ECTFBD）（HBPPBI=2-（biphenyl-4-yl）-1-phenyl-1H-benzo[d]imidazole,HECTFBD=1-（9-ethyl-9H-carbazol-3-yl）-4,4,4-trifluorobutane-1,3-dione） containing carrier transport moieties was synthesized and characterized by 1H NMR and elemental analysis.The photophysical and electrochemical properties of（BPPBI）2Ir（ECTFBD） in dichloromethane were investigated.The Ir-complex-based electroluminescent devices were fabricated.The structure of devices was ITO/MoO3（10 nm）/NPB（80 nm）/CBP： x%（BPPBI）2Ir（ECTFBD）（20 nm）/TPBi（45 nm）/LiF/Al [x%： 4% and 7% doping concentration by weight;NPB=N4,N4′-di（naphthalen-1-yl）-N4,N4′-diphenylbiphenyl-4,4′-diamine,CBP=4,4′-di（9H-carbazol-9-yl）biphenyl,TPBi=1,3,5-tris（1-phenyl-1H-benzo[d]imidazol-2-yl）benzene].Deep yellow emission from the emissive layer was obtained.For the device at 7 wt% doping concentration,the maximum current efficiency and the maximum brightness were 5.2 cd·A-1 and 8 690 cd·m-2,respectively.

关 键 词：铱配合物 电致磷光 有机电致发光二极管 

分 类 号：O614.825[理学—无机化学]