Orange phosphorescent Ir(III) complexes consisting of substituted 2-phenylbenzothiazole for solution-processed organic light-emitting diodes
作者:Jae-Ho Jang、Hea Jung Park、Jeong Yong Park、Hee Un Kim、Do-Hoon Hwang
DOI:10.1016/j.orgel.2018.05.027
日期:2018.9
Orange phosphorescent iridium(III) complexes, (DMBT)2Ir(acac) and (TBT)2Ir(acac), based on either 2-(3,4-dimethylphenyl)benzo[d]thiazole (DMBT) or 2-(4-(trimethylsilyl)phenyl)benzo[d]thiazole (TBT) as the cyclometalated main ligands and acetylacetone (acac) as an ancillary ligand, were synthesized for solution-processed organic light-emitting diodes (OLEDs). The Ir(III) complex, (BT)2Ir(acac), which
橙色磷光铱(III)配合物,(DMBT)2的Ir(ACAC)和(TBT)2的Ir(ACAC)的基础上,无论是2-(3,4-二甲基苯基)苯并[ d ]噻唑(DMBT)或2-(合成了4-(三甲基甲硅烷基)苯基)苯并[ d ]噻唑(TBT)作为环金属化的主要配体,并乙酰丙酮(acac)作为辅助配体,用于溶液处理的有机发光二极管(OLEDs)。还合成了以2-苯基苯并[ d ]噻唑(BT)为主配体和acac作为辅助配体的Ir(III)配合物(BT)2 Ir(acac)。研究了这些Ir(III)配合物的光物理,电化学和电致发光性质。使用(TBT)制造的OLED2 Ir(acac)表现出显着改善的亮度和外部量子效率(EQE),因为通过引入庞大的三甲基甲硅烷基可以成功防止高掺杂浓度下的自猝灭。(TBT)2 Ir(acac)的EL光谱在578 nm处显示出最大发射,半峰全宽为74 nm,在1000 cd时半乳糖国际委员会的坐标为(0