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<p>Circularly polarized afterglow (CPA) materials provide an advanced optical signature to light emission, offering great potential for advanced photonic technologies. However, the practical implementation using these materials remains challenging due to the lack of satisfactory performance, that is, high luminescence dissymmetry factor (<i>g</i><sub>CPA</sub>), long visualization time, and good processability. Here, we develop processable, full-color CPA materials composed of cholesteric liquid crystal polymers and inorganic phosphors embedded in polymers, achieving a high <i>g</i><sub>CPA</sub> value of up to 0.74 and a long visualization time of 7 min. Furthermore, we pattern the obtained materials as optical sensors and apply circular polarization differential imaging to realize the practice.</p>

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Chiral afterglow materials for imaging

  • 期刊论文

  • 发表日期：

    2026年3月6日

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  • Shanshan Zhao,
  • Mingjiang Zhang,
  • Zhi Tong,
  • Anqi Li,
  • Tiehao Li,
  • Taotao Zhuang

摘要

Circularly polarized afterglow (CPA) materials provide an advanced optical signature to light emission, offering great potential for advanced photonic technologies. However, the practical implementation using these materials remains challenging due to the lack of satisfactory performance, that is, high luminescence dissymmetry factor (gCPA), long visualization time, and good processability. Here, we develop processable, full-color CPA materials composed of cholesteric liquid crystal polymers and inorganic phosphors embedded in polymers, achieving a high gCPA value of up to 0.74 and a long visualization time of 7 min. Furthermore, we pattern the obtained materials as optical sensors and apply circular polarization differential imaging to realize the practice.