A promising phosphorescent iridium complex with fluorine substituents: synthesis, crystal structure, photo- and electro-luminescence performance |
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| Authors: | Cui Xiao Zhang He Ming Wu Tie Feng Li Mei |
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| Affiliation: | aSchool of Computer Science & Engineering, Xi’an Technological University, Xi’an 710032, PR China;bKey Lab of Wide Band-Gap Semiconductor Materials and Devices, School of Micro-electronics, Xidian University, Xi’an 710071, PR China |
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| 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/cm2 and a peak current efficiency of 8.7 cd/A. |
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| Keywords: | Iridium complex Photoluminescence Electroluminescence Crystal |
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