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<p>Multicolor luminescent materials have attracted considerable attention for their applications in information storage, encryption, and flexible displays. However, these materials often suffer from cumbersome synthesis and poor film-form ability. Herein, we report a facile strategy to fabricate multicolor luminescent films by doping an intramolecular charge transfer (ICT)-active aggregation-induced emission luminogen (AIEgen) into highly polar bifuran-based polyester. In combination with the ICT effect of the AIEgen, the distinct energy transfer efficiency between the polyester and the AIEgen achieves the wide-range emission color change from blue to red in the doped films. Furthermore, the AIEgen exhibits reversible pH-responsiveness and irreversible photocyclization under 365 nm UV light. Accordingly, a nine-grid and “dragon/QR code” patterns are designed using these doped films, demonstrating their potential in advanced information encryption and storage. This work not only provides a new perspective on the fabrication of multicolor luminescent materials, but also paves the way in information storage, data encryption, and other advanced technologies.</p>

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Composition-dependent Emission in Bifuran-based Polyester Films Doped with Aggregation-induced Emission Luminogen for Information Storage and Encryption

  • 期刊论文

  • 发表日期：

    2026年3月25日

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  • Wen-Ting Li,
  • Wei Wang,
  • Jie Chen,
  • Guang-Jian Liao,
  • Yuan Qiu,
  • Hong Wang,
  • Guo-Chuan Yin,
  • Yong-Gui Liao,
  • Xiao-Lin Xie

摘要

Multicolor luminescent materials have attracted considerable attention for their applications in information storage, encryption, and flexible displays. However, these materials often suffer from cumbersome synthesis and poor film-form ability. Herein, we report a facile strategy to fabricate multicolor luminescent films by doping an intramolecular charge transfer (ICT)-active aggregation-induced emission luminogen (AIEgen) into highly polar bifuran-based polyester. In combination with the ICT effect of the AIEgen, the distinct energy transfer efficiency between the polyester and the AIEgen achieves the wide-range emission color change from blue to red in the doped films. Furthermore, the AIEgen exhibits reversible pH-responsiveness and irreversible photocyclization under 365 nm UV light. Accordingly, a nine-grid and “dragon/QR code” patterns are designed using these doped films, demonstrating their potential in advanced information encryption and storage. This work not only provides a new perspective on the fabrication of multicolor luminescent materials, but also paves the way in information storage, data encryption, and other advanced technologies.