title: A promising phosphorescent iridium complex with fluorine substituents: synthesis, crystal structure, photo- and electro-luminescence performance.
abstract: In this paper, we report a phosphorescent Ir(III) emitter of Ir(acac-F6)(F-BT)(2), where acac-F6 = 1,1,1,5,5,5-hexafluoropentane-2,4-dione and F-BT = 2-(2-fluorophenyl)benzo[d]thiazole, including its crystal structure, electronic nature, photophysical characteristics, thermal and electrochemical properties. Data suggest that Ir(acac-F6)(F-BT)(2) is a promising emitter with high quantum yield of 0.19 and good thermal stability, along with its proper energy levels for charge carrier transportation. Electroluminescence (EL) devices using Ir(acac-F6)(F-BT)(2) as emitter are also fabricated, and their electroluminescence performances are investigated in detail. The optimal EL device shows a maximum luminance of 27,000 cd/cm(2) and a peak current efficiency of 8.7 cd/A.
authors.affiliation: School of Computer Science & Engineering, Xi'an Technological University, Xi'an 710032, PR China. cuixiao0217@163.com
authors.forename: Xiao
authors.initials: X
authors.lastname: Cui
authors.forename: He Ming
authors.initials: HM
authors.lastname: Zhang
authors.forename: Tie Feng
authors.initials: TF
authors.lastname: Wu
authors.forename: Mei
authors.initials: M
authors.lastname: Li
mesh_terms: D002621:Chemistry / Q000379:methods*; D003460:Crystallization; D004563:Electrochemistry / Q000379:methods*; D005461:Fluorine / Q000737:chemistry*; D006358:Hot Temperature; D007495:Iridium / Q000737:chemistry*; D008956:Models, Chemical; D008958:Models, Molecular; D008968:Molecular Conformation; D010758:Phosphorus / Q000737:chemistry*; D010777:Photochemistry / Q000379:methods; D011789:Quantum Theory; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013696:Temperature; D014466:Ultraviolet Rays
chemical_list: D010758:Phosphorus; D005461:Fluorine; D007495:Iridium