Enabling robust blue circularly polarized organic afterglow through self-confining isolated chiral chromophore

Mingjian Zeng, Weiguang Wang, Shuman Zhang, Zhisheng Gao, Yingmeng Yan, Yitong Liu, Yulong Qi, Xin Yan, Wei Zhao, Xin Zhang, Ningning Guo, Huanhuan Li, Hui Li, Gaozhan Xie, Ye Tao (), Runfeng Chen () and Wei Huang ()
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Mingjian Zeng: Nanjing University of Posts & Tele communications
Weiguang Wang: Nanjing University of Posts & Tele communications
Shuman Zhang: Nanjing University of Posts & Tele communications
Zhisheng Gao: Nanjing University of Posts & Tele communications
Yingmeng Yan: Nanjing University of Posts & Tele communications
Yitong Liu: Nanjing University of Posts & Tele communications
Yulong Qi: Nanjing University of Posts & Tele communications
Xin Yan: Nanjing University of Posts & Tele communications
Wei Zhao: Nanjing University of Posts & Tele communications
Xin Zhang: Nanjing University of Posts & Tele communications
Ningning Guo: Nanjing University of Posts & Tele communications
Huanhuan Li: Nanjing University of Posts & Tele communications
Hui Li: Nanjing University of Posts & Tele communications
Gaozhan Xie: Nanjing University of Posts & Tele communications
Ye Tao: Nanjing University of Posts & Tele communications
Runfeng Chen: Nanjing University of Posts & Tele communications
Wei Huang: Nanjing University of Posts & Tele communications

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

Abstract: Abstract Creating circularly polarized organic afterglow system with elevated triplet energy levels, suppressed non-radiative transitions, and effective chirality, which are three critical prerequisites for achieving blue circularly polarized afterglow, has posed a formidable challenge. Herein, a straightforward approach is unveiled to attain blue circularly polarized afterglow materials by covalently self-confining isolated chiral chromophore within polymer matrix. The formation of robust hydrogen bonds within the polymer matrix confers a distinctly isolated and stabilized molecular state of chiral chromophores, endowing a blue emission band at 414 nm, lifetime of 3.0 s, and luminescent dissymmetry factor of ~ 10−2. Utilizing the synergistic afterglow and chirality energy transfer, full-color circularly polarized afterglow systems are endowed by doping colorful fluorescent molecules into designed blue polymers, empowering versatile applications. This work paves the way for the streamlined design of blue circularly polarized afterglow materials, expanding the horizons of circularly polarized afterglow materials into various domains.

Date: 2024
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DOI: 10.1038/s41467-024-47240-5

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