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| Synthesis and Electroluminescence of a Red Iridium Complex |
| Author Name | Affiliation | E-mail | | LI Hong-Yan | 1 School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
Engineering Research Center of Seawater Utilization Technology of Ministry of Education, Tianjin 300130, China | hongyan841210@126.com | | HUANG Yi-Chuan | School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China | | | LI Zhen-Biao | School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China | | | GUO Hong-Qi | School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China | | | YANG Xin | School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China | | | YANG Ting-Ting | School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China | | | LU Ai-Dang | School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
Engineering Research Center of Seawater Utilization Technology of Ministry of Education, Tianjin 300130, China | aidang_lu@163.com |
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| Abstract: 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 (ηp) of 5.73 lm·W-1 and a maximum current efficiency (ηc) of 7.13 cd·A-1. |
| Keywords: red iridium complex 1-(4-(trifluoromethyl) phenyl) isoquinoline tetra-(4-trifluoromethylpheny) limidodiphosphinate phosphorescence organic light-emitting diodes |
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| 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. |
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