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High light electroluminescence of novel Cu(I) complexes |
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| Authors: | Zhenjun Si Jiang Li Shiyong Liu Wenlian Li |
| Institution: | a Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, PR China b School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, PR China c State key Laboratory of Integrated Optoelectronics, Jilin University, Changchun 130023, PR China |
| Abstract: | Three novel Cu(I) complexes, CuDPEphos(NN)]BF4, where NN=1-(4-5′-phenyl-1,3,4-oxadiazolylbenzyl)-2-pyridinylbenzoimidazole (OXD-Pybm; L1) (1), 1-(4-carbazolylbutyl)-2-pyridinylbenzimidazole (Carl-Pybm; L2) (2), and 1-H-2-pyridinylbenzimidazole (HPybm; L3) (3), were synthesized. The photoluminescent (PL) properties of 1-3 and the electroluminescent (EL) properties of complexes 1 and 2 were systematically studied. The maximum brightness of 2-based devices was 8669 cd/m2, which should be the best among the reported Cu(I) complexes-based devices. |
| Keywords: | Electrophosphorescence Cu(I) complexes OLEDs |
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