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Dual-band high-dissymmetry circularly polarized luminescence from cholesteric liquid crystals overlaid a gold cluster film

Author

Listed:
  • Xichen Hao

    (Tianjin University)

  • Zhenda Chen

    (Tianjin University)

  • Huizhen Ma

    (Tianjin University
    Tianjin University)

  • Yuhan Wang

    (Tianjin University)

  • Yaxian Cao

    (Tianjin University)

  • Buyi Yao

    (Tianjin University)

  • Ruotong Wang

    (Tianjin University)

  • Rui Cao

    (Tianjin University)

  • Yin Xiao

    (Tianjin University)

  • Changlong Liu

    (Tianjin University)

  • Ying Liu

    (Tianjin University)

  • Shouzhong Feng

    (Anhui Zhongyi New Material Science and Technology Co. Ltd)

  • Haitao Dai

    (Tianjin University)

  • Xiao-Dong Zhang

    (Tianjin University)

  • Yan-Jun Liu

    (Southern University of Science and Technology
    Southern University of Science and Technology)

Abstract

Recently, near-infrared (NIR) circularly polarized luminescence (CPL) has emerged as a research hotspot owing to its unique application prospects. Atomic precision Au clusters (AuCs) have shown excellent biocompatibility and characteristic emission in the NIR region, and have found various applications in biosensing and imaging. Here, we achieve stable and highly dissymmetric CPL in both visible and NIR regions from cholesteric liquid crystals (CLCs) overlaid on a uniform AuCs film. The glum factors (Maximum 2) in the visible and the NIR regions reach 1.8 and 0.7, respectively. AuCs films are prepared by the anti-solvent precipitation method for the first time. By overlaying wide-band CLCs on the AuCs film, dual CPL is simultaneously realized in both visible and NIR regions. Based on the intrinsic properties of CLCs, electrically tunable, thermally reversible and optically tunable CPL from CLCs/AuCs composites are successfully demonstrated. These features of CLCs/AuCs composites offer possibilities for applications in cryptography and anti-counterfeiting.

Suggested Citation

  • Xichen Hao & Zhenda Chen & Huizhen Ma & Yuhan Wang & Yaxian Cao & Buyi Yao & Ruotong Wang & Rui Cao & Yin Xiao & Changlong Liu & Ying Liu & Shouzhong Feng & Haitao Dai & Xiao-Dong Zhang & Yan-Jun Liu, 2025. "Dual-band high-dissymmetry circularly polarized luminescence from cholesteric liquid crystals overlaid a gold cluster film," Nature Communications, Nature, vol. 16(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-64637-y
    DOI: 10.1038/s41467-025-64637-y
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    References listed on IDEAS

    as
    1. Haile Liu & Yonghui Li & Si Sun & Qi Xin & Shuhu Liu & Xiaoyu Mu & Xun Yuan & Ke Chen & Hao Wang & Kalman Varga & Wenbo Mi & Jiang Yang & Xiao-Dong Zhang, 2021. "Catalytically potent and selective clusterzymes for modulation of neuroinflammation through single-atom substitutions," Nature Communications, Nature, vol. 12(1), pages 1-14, December.
    2. Ilse M. Daly & Martin J. How & Julian C. Partridge & Shelby E. Temple & N. Justin Marshall & Thomas W. Cronin & Nicholas W. Roberts, 2016. "Dynamic polarization vision in mantis shrimps," Nature Communications, Nature, vol. 7(1), pages 1-9, November.
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