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Published on: September 20, 2017
Efficient long-lived circularly polarized luminescence from cholesteric liquid crystalline polymer networks
Peipei Guan1, Shihan Yu1, Yonggang Yang1
1Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China. hkli@suda.edu.cn.
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A series of polymer network films were fabricated via in situ photopolymerization of cholesteric liquid-crystalline mixtures doped with triphenylamine-based luminophores. The films show efficient long-lived circularly polarized luminescence with luminescence dissymmetry factors up to -0.93, emission lifetimes up to 763 ms and quantum yields up to 80.0%.
