Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1233280 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2011 | 6 Pages |
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.
Graphical abstractA phosphorescent Ir(III) complex is synthesized and well characterized. The optimal electroluminescence device based on this complex shows a maximum luminance of 27,000 cd/cm2 and a peak current efficiency of 8.7 cd/A.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A high efficiency phosphorescent Ir(III) emitter is synthesized. ► Its structure, nature and properties are well studied and characterized. ► Electroluminescence devices are fabricated. ► A maximum current efficiency of 8.7 cd/A is realized.