Highly efficient phosphorescent iridium (III) diazine complexes for   OLEDs: Different photophysical property between iridium (III) pyrazine   complex and iridium (III) pyrimidine complex

doi:10.1016/j.jorganchem.2009.05.037

CORC > 北京大学 > 化学与分子工程学院

	Highly efficient phosphorescent iridium (III) diazine complexes for OLEDs: Different photophysical property between iridium (III) pyrazine complex and iridium (III) pyrimidine complex
	Ge, Guoping ; He, Jing ; Guo, Haiqing ; Wang, Fuzhi ; Zou, Dechun
刊名	有机金属化学杂志
	2009
关键词	Phosphorescence Iridium diazine complex (3)MLCT OLED LIGHT-EMITTING-DIODES ELECTROPHOSPHORESCENT DEVICES IR(III) COMPLEXES LIGANDS LUMINESCENCE EMISSION EMITTERS COLOR STATE
DOI	10.1016/j.jorganchem.2009.05.037
英文摘要	The synthesis and luminescence of four new iridium (III) diazine complexes (1-4) were investigated. HOMO and LUMO energy levels of the complexes were estimated according to the electrochemical performance and the UV-Vis absorption spectra, showing the pyrimidine complexes have a larger increase for the LUMO than the HOMO orbital in comparison with the pyrazine complexes. Several high-efficiency yellow and green OLEDs based on phosphorescent iridium (III) diazine complexes were obtained. The devices emitting yellow light based on 1 with turn-on voltage of 4.1 V exhibited an external quantum efficiency of 13.2% (power efficiency 20.3 lm/W), a maximum current efficiency of 37.3 cd/A. The electroluminescent performance for the green iridium pyrimidine complex of 3 is comparable to that of the iridium pyridine complex (PPY)(2)Ir(acac) (PPY = 2-phenylpyridine), which is among the best reported. (C) 2009 Elsevier B.V. All rights reserved.; Chemistry, Inorganic & Nuclear; Chemistry, Organic; SCI(E); EI; 34; ARTICLE; 19; 3050-3057; 694
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/151412]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Ge, Guoping,He, Jing,Guo, Haiqing,et al. Highly efficient phosphorescent iridium (III) diazine complexes for OLEDs: Different photophysical property between iridium (III) pyrazine complex and iridium (III) pyrimidine complex[J]. 有机金属化学杂志,2009.
APA	Ge, Guoping,He, Jing,Guo, Haiqing,Wang, Fuzhi,&Zou, Dechun.(2009).Highly efficient phosphorescent iridium (III) diazine complexes for OLEDs: Different photophysical property between iridium (III) pyrazine complex and iridium (III) pyrimidine complex.有机金属化学杂志.
MLA	Ge, Guoping,et al."Highly efficient phosphorescent iridium (III) diazine complexes for OLEDs: Different photophysical property between iridium (III) pyrazine complex and iridium (III) pyrimidine complex".有机金属化学杂志 (2009).