Citation: LI Hong-Yan, HUANG Yi-Chuan, LI Zhen-Biao, GUO Hong-Qi, YANG Xin, YANG Ting-Ting, LU Ai-Dang. Synthesis and Electroluminescence of a Red Iridium Complex[J]. Chinese Journal of Inorganic Chemistry, ;2018, 34(12): 2211-2218. doi: 10.11862/CJIC.2018.238 shu

Synthesis and Electroluminescence of a Red Iridium Complex

1.
School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
2.
Engineering Research Center of Seawater Utilization Technology of Ministry of Education, Tianjin 300130, China

Corresponding author: LI Hong-Yan, hongyan841210@126.com LU Ai-Dang, aidang_lu@163.com
Received Date: 6 July 2018
Revised Date: 9 August 2018

Figures(5)

A novel iridium(Ⅲ) cyclometalated complex Ir(tfmpiq)₂(tfmtpip) with 1-(4-(trifluoromethyl) phenyl) isoquinoline(tfmpiq) as main ligand and tetra-(4-trifluoromethylpheny) limidodiphosphinate (tfmtpip) as ancillary ligands have been synthesized. The complex Ir(tfmpiq)₂(tfmtpip) is thermally stable up to 373℃ indicating good thermal stability. For the emission spectra in toluene, the maximum peak located at 613 nm with quantum efficiency of 3.7%. The HOMO and LUMO levels are calculated as -5.62 and -3.54 eV, respectively. The devices R1~R4 with the structure of ITO/TAPC(40 nm)/Ir(tfmpiq)₂(tfmtpip)(x%):mCP (20 nm)/TmPyPB(40 nm)/LiF(1 nm)/Al(100 nm) were fabricated. The device R3 with a 4%(w/w) doped concentration exhibited a luminance of 10 542 cd·m^-2 at a driving voltage of 12.8 V with a maximum power efficiency (η_p) of 5.73 lm·W^-1 and a maximum current efficiency (η_c) of 7.13 cd·A^-1.
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沈阳化工大学材料科学与工程学院沈阳 110142