Chemical Research in Chinese Universities ›› 2025, Vol. 41 ›› Issue (6): 1586-1606.doi: 10.1007/s40242-025-5243-1

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Chiral Covalent Organic Frameworks for Circularly Polarized-light Detection: A Review

YU Junhao, ZHU Rongjiao, LI Rongjin   

  1. State Key Laboratory of Advanced Materials for Intelligent Sensing, Ministry of Education (MOE), Key Laboratory of Organic Integrated Circuit & Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
  • Received:2025-10-08 Accepted:2025-11-12 Online:2025-12-01 Published:2025-12-05
  • Contact: LI Rongjin,E-mail:lirj@tju.edu.cn;ZHU Rongjiao,E-mail:zhurongjiao@tju.edu.cn E-mail:lirj@tju.edu.cn;zhurongjiao@tju.edu.cn
  • Supported by:
    This work was supported by the National Key R&D Program of China (No. 2024YFA1209600), the National Natural Science Foundation of China (No. 52273193), and the Project of the Haihe Laboratory of Sustainable Chemical Transformations, China.

Abstract: Chiral covalent organic frameworks (CCOFs) integrate programmable chiral backbones, ordered π-conjugated networks, and defined pores, combining chiral optical selectivity with efficient charge transport. These features enable direct electrical readout of circularly polarized light (CPL) without external optics. This review summarizes recent advances in CCOF-based CPL detection, covering unified performance metrics including the asymmetry factor g, responsivity R, specific detectivity D*, and bandwidth f-3Db and three major synthetic strategies: post-synthetic modification (PSM), direct chiral synthesis (DCS), and chiral induction synthesis (CIS). We discuss the representative device architectures and emerging applications. Finally, we outline future directions for scalable low-energy synthesis, oriented film fabrication, and array-level integration. Multiscale cooperation among chemistry, photonics, and device physics is essential to transition CCOF-based CPL detection from proof-of-concept toward practical implementation.

Key words: Chiral covalent organic framework, Circularly polarized light detection, Asymmetry factor, Chiral photonics, Chiral-induced spin selectivity, Photodetector