Dinuclear cyclometalated iridium (III) complex containing functionalized triphenylamine core: synthesis, photophysics and application in the single-emissive-layer WOLEDs
| Autor: | Yu Liu, Weiguo Zhu, Wenjing Xiong, Zhaoran Hao, Dongge Ma, Ning Su, Yu Junting, Keqi He |
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| Rok vydání: | 2016 |
| Předmět: |
Organic Chemistry
chemistry.chemical_element Phosphor 02 engineering and technology Chromophore Electroluminescence 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry Triphenylamine 01 natural sciences Biochemistry 0104 chemical sciences chemistry.chemical_compound chemistry PEDOT:PSS Drug Discovery OLED Iridium 0210 nano-technology Phosphorescence |
| Zdroj: | Tetrahedron. 72:7164-7169 |
| ISSN: | 0040-4020 |
| DOI: | 10.1016/j.tet.2016.09.012 |
| Popis: | To obtain highly efficient white-emitting devices, a novel functionalized dinuclear iridium (III) complex of C 8 TPA(FIrpic) 2 was successfully synthesized and characterized. In this phosphor, FIrpic is a blue-emitting phosphorescent chromophore of iridium(III) bis[(4,6-difluorophenyl)pyridinato-N,C2′] picolate and C 8 TPA is a blue-emitting fluorescent chromophore of triphenylamine as bridging donor. Its optophysical and electro-phosphorescent properties were primarily investigated. White emission with an increasing current efficiency of 1.31 cd/A at 15.3 mA/cm 2 and brightness of 1770 cd/m 2 at 656.3 mA/cm 2 was obtained in its single-emissive-layer OLEDs with a configuration of ITO/PEDOT:PSS/C 8 TPA(FIrpic) 2 (10 wt %):TCTA/TPBi/LiF/Al. The results indicate that an introduction of triphenylamine group into dinuclear iridium (III) complexes as bridged donor can improve the performance of its iridium (III) complexes-doped OLEDs. |
| Databáze: | OpenAIRE |
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