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Luminescent covalent organic frameworks: Classification to optical applications
Yu-Qin Xia#, Shui-Ming Jing#, Li-Mei Chang, Zhi-Gang Gu* Jian Zhang
https://doi.org/10.1016/j.cjsc.2025.100731
ABSTRACT
Covalent organic frameworks (COFs), as a burgeoning type of porous material, have attracted significant attention due to their intriguing structural characteristics and customizable functionalities. Particularly COFs that exhibit luminescent properties have garnered significant attention in fields like chemical sensing, biosensing, photocatalysis, optoelectronics applications and so on. This article systematically examines the synthetic strategies for luminescent covalent organic frameworks (LCOFs) and provides a comprehensive summary based on linkage-type classification. This article further provides a comprehensive summary and emphasizes the broad and notable applications of LCOFs across multiple areas, such as luminescent applications, circularly polarized luminescence, fluorescent imaging, biomedicine, and chemical and biological sensing. Finally, the primary challenges and future directions of LCOFs concerning their synthetic method, structural design and optical properties are discussed. This review helps relevant researchers quickly understand the current research status in this field, and point out the direction for subsequent related research work. It is expected to promote the further development and application expansion of LCOFs synthesis technology, which has important academic value.
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