发光学报2013，Vol.34Issue(7)：816-823,8.DOI:10.3788/fgxb20133407.0816
一种橙光磷光铱(Ⅲ)配合物的合成、晶体结构及光电性质研究
Synthesis, Crystal Structure and Photophysical Properties of Iridium (Ⅲ) Complex Based on 4-methyl-2-phenylquinoline and Pentane-2,4-dione Ligands
摘要
Abstract
A metal complex [(4m2pq)2Ir(acac)] was synthesized under mild condition of dichloromethane as solvent and potassium carbonate as deacid reagent at 25 ℃,where "4m2pq" is the ortho-C-deprotonated derived from 4-methyl-2-phenylquinoline and "acac" is derived from pentane2,4-dione.The molecular structure of (4m2pq)2Ir(acac) was characterized by 1 H NMR spectral,13C NMR spectrum and X-ray diffraction.UV-visible absorption spectrum,photoluminescence spectrum,luminescence quantum yields and phosphorescence lifetime were measured for studying photophysical properties of (4m2pq) 2 Ir (acac).The single crystal structure of (4m2pq)2Ir(acac) is in trielinic and space group P1-.The orange phosphorescent emission with high fluorescence quantum efficiencies of 50.4％ and lifetime of 0.33 μs can be observed with peaks at 597 nm in degassed CH2C12 solution at room temperature.Moreover,(4m2pq)2Ir(acac) was utilized as phosphorescence dopant in OLEDs with the structures of ITO/NPB (30 nm)/CBP∶ (4m2pq)2Ir(acac) (mass fraction of 6％ and 8％,20 nm)/BCP (10 nm)/Alq3 (20 nm)/LiF (1 nm)/Al.The device showed orange emission at 597 nm,maximum brightness of 39 667 cd/m2,current efficiency of 14.2 cd/A,and power efficiency of 8.1 lm/W.关键词
2-苯基4-甲基喹啉/乙酰丙酮/铱(Ⅲ)配合物/OLEDsKey words
4-methyl-2-phenylquinoline/ pentane-2,4-dione/ iridium(Ⅲ) complex/ OLEDs分类
信息技术与安全科学引用本文复制引用
陶鹏,赵强,景姝,汪静霞,吕壮,陈柳青,王华..一种橙光磷光铱(Ⅲ)配合物的合成、晶体结构及光电性质研究[J].发光学报,2013,34(7):816-823,8.基金项目
国家自然科学基金(21176169,21071108,60976018,21101111,61205179) （21176169,21071108,60976018,21101111,61205179）
国家国际合作专项(2012DFR50460) （2012DFR50460）
山西省科技创新重点团队(2012041011) （2012041011）
山西省科技攻关项目(20120321019) （20120321019）
国家教育部博士点基金(20101402110007)资助项目 （20101402110007）
