期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 7, 期 12, 页码 3553-3559出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9tc00546c
关键词
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资金
- National Key Research and Development Program of China - MOST [2016YFB0401302]
- Natural Science Foundation of Guangdong Province China [2018A0303100011]
- National Natural Science Foundation of China [51572117, 51863009]
- Innovation Driven 5511 Project of Jiangxi Province [20165BCB18016]
- Natural Science Foundation of Jiangxi Province [20181ACB20010]
- Projects for Postgraduate Innovation Jiangxi Science & Technology Normal University [YC2018-X31]
Solution processed blue organic luminescent materials are in great demand toward new generation displays fabrication by low-cost printing technique, but most are far from satisfactory. In this context, two novel isomeric fluorophores, 9CzTPE and 3CzTPE, that contain tetraphenylethylene, carbazole, and fluorene species were synthesized by variation of the linkage modes. The thermal, photophysical, electrochemical, and aggregation-induced emission (AIE) properties of the resulting fluorophores were systematically investigated. Both 9CzTPE and 3CzTPE exhibit evident AIE properties and achieve sky-blue emission with a high solid-state fluorescence quantum yield of more than 60%. The solution-processed non-doped organic light-emitting diode based on 3CzTPE exhibits excellent performance, with high luminous efficiency of 4.35 cd A(-1) and a maximum external quantum efficiency of 2.81% with the emission peak at 479 nm. These results open a novel approach for the facile construction of highly efficient blue light-emitting AIE fluorophores for solution-processed dopant-free organic light-emitting diodes.
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