Wide-range tunable circularly polarized luminescence in triphenylamine supramolecular polymers via charge-transfer complexation

Yuchen Guo, Yifei Zhang, Jianfei Ma, Rui Liao () and Feng Wang ()
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Yuchen Guo: University of Science and Technology of China
Yifei Zhang: University of Science and Technology of China
Jianfei Ma: University of Science and Technology of China
Rui Liao: University of Science and Technology of China
Feng Wang: University of Science and Technology of China

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Circularly polarized luminescence materials with broad color tunability are highly valuable for applications in 3D display and photonic technologies. Here we show that incorporating intermolecular charge-transfer complexation into chiral supramolecular polymers is an efficient strategy to achieve this objective. Adjusting the charge-transfer strength between triphenylamine donors and naphthalenemonoimide acceptors enables tunable circularly polarized luminescence signals across the visible light spectrum. This includes blue-colored emission for the supramolecular donor polymers, as well as green, yellow, orange and red-colored emission for supramolecular donor–acceptor polymers. The donor–acceptor packing modes are further influenced by the presence or absence of acetylene linkages on the triphenylamine donors, resulting in ground- or excited-state charge transfer with varying luminescent lifetimes. Additionally, white-light circularly polarized luminescence is achieved by encapsulating blue- and orange-emitting species into surfactant-based micelles in a compartmentalized manner. Overall, manipulating charge-transfer complexation in supramolecular polymers provides an effective approach to wide-range tunable circularly polarized luminescence materials.

Date: 2024
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DOI: 10.1038/s41467-024-53297-z

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