The present invention discloses an iridium complexes and the organic EL device employing the iridium complexes as light emitting guest of emitting layer can display good performance like as lower driving voltage and power consumption, increasing efficiency and half-life time. Additional, the present invention provide the suitable emitting host (H1 to H6) to collocate with the energy level of iridium complexes for the present invention. Also provided a novel preparation method to synthesize the novel ligand such as 6-bromo-3,3-dimethyl-1-phenyl-1,3-dihydroindeno[2,1-b]carbazole.
本发明公开了一种
铱配合物,以及采用该
铱配合物作为发光层的有机EL器件,可以显示出较低的驱动电压和功耗,提高效率和半衰期等良好性能。此外,本发明提供了适合与
铱配合物能级相匹配的发光宿主(H1至H6)用于本发明。还提供了一种新颖的制备方法,用于合成新型
配体,如6-
溴-3,3-二甲基-1-苯基-1,3-二氢
吲哚并[2,1-b]
咔唑。