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Enabling Multicolor Circularly Polarized Organic Long Persistent Luminescence through Chiral Exciplex
Author(s) -
Li Hui,
Zhang Xin,
Tan Cheng,
Zhang Peng,
Zhao Feifan,
Guo Shaobo,
Qi Yulong,
Li Huanhuan,
Xie Gaozhan,
Tao Ye,
Chen Runfeng,
Huang Wei
Publication year - 2025
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202500841
Abstract Circularly polarized organic long persistent luminescence (CP‐OLPL) has garnered significant attention due to its distinctive properties. However, achieving CP‐OLPL materials with ultralong durations remains a formidable challenge. Herein, an effective strategy is proposed to obtain long‐lived CP‐OLPL by constructing a self‐designed chiral donor for developing a host–guest chiral exciplex system. The gradual recombination of long‐lived charge‐separated states enables a green CP‐OLPL emission to persist for over 1.5 hours with an asymmetry factor (| g lum |) of 4.5 × 10 −3 . More intriguingly, doping with rubrene fluorophore yields an orange‐red CP‐OLPL system, exhibiting a duration over 1 hour and | g lum | of 2.3 × 10 −3 through synergistic singlet‐singlet and chirality energy transfer. These properties render the development of chiral afterglow display, multi‐level information encryption, and afterglow lighting. This work not only represents a significant advancement in the design of chiral donors for ultralong CP‐OLPL exciplex system with durations but also provides valuable insights into exciton dynamics.