Journal
MATERIALS CHEMISTRY FRONTIERS
Volume 5, Issue 14, Pages 5471-5477Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1qm00482d
Keywords
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Funding
- National Natural Science Foundation of China [21875152, 22071166]
- Open Fund of the State Key Laboratory of Luminescent Materials and Devices, South China University of Technology [2020-skllmd-02]
- Open Fund of Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, Guangzhou, China (South China University of Technology) [2019B030301003]
- Project of Scientific and Technologic Infrastructure of Suzhou [SZS201905]
- Priority Academic Program Development of Jiangsu High Education Institutions (PAPD)
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A series of oriented polymer films with efficient CPL have been fabricated through photopolymerization of cholesteric liquid-crystalline mixtures doped with a tetraphenylethylene-based conjugated oligomer. The resulting films emit intense yellow-orange CPL with absolute g(lum) values up to 0.77 and phi(F) up to 60.4%, providing a strategy for constructing CPL thin-film materials with large g(lum) and high fluorescence efficiency.
Circularly polarized luminescence (CPL) materials have aroused increasing interest due to their wide potential applications. However, achieving CPL-active materials with both a large dissymmetry factor (g(lum)) and high quantum yield (phi(F)) in the solid state remains a challenging task. Here, a series of oriented polymer films with efficient CPL have been fabricated through photopolymerization of cholesteric liquid-crystalline mixtures doped with a tetraphenylethylene-based conjugated oligomer. The resulting films emit intense yellow-orange CPL with absolute g(lum) values up to 0.77 and phi(F) up to 60.4%. This work provides a strategy for constructing CPL thin-film materials with large g(lum) and high fluorescence efficiency.
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