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Enhanced Circularly Polarized Luminescence in Emissive Charge-Transfer Complexes.

08:00 EDT 1st April 2019 | BioPortfolio

Summary of "Enhanced Circularly Polarized Luminescence in Emissive Charge-Transfer Complexes."

Achieving large dissymmetry factor (glum) is a big challenge in the research field of circularly polarized luminescence (CPL). Here, we report a chiral charge-transfer (CT) system consisting of chiral electron donor and achiral electron acceptor, which shows bright circularly polarized emission with large glum value. The chiral emissive CT complexes could be fabricated through various approaches such as grinding, crystallization, spin coating and gelatinization, by simply blending chiral donor and achiral acceptor. The structural synergy originating from π-π stacking and strong CT interactions resulted in the long-range ordered self-assembly, enabling the formation of supramolecular gels. Benefit from the large magnetic dipole transition moment in CT state, the CPL activity of CT complexes exhibited large circular polarization. Our design strategy of the chiral emissive CT complexes is expected to help the development of new molecular engineering strategies for designing highly efficient CPL-active materials.

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This article was published in the following journal.

Name: Angewandte Chemie (International ed. in English)
ISSN: 1521-3773
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