Twisted-stacking MOF patterns with tailorable circularly polarized luminescence properties and encryption applications

Xini Chu, Jingguo Li, Di Wang, Liyu Gan, Xu Liu, Zeyu Feng, Peng Yang, Hongli Zhang (), Yifan Xie (), Fei Wang () and Gang Zou ()
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Xini Chu: University of Science and Technology of China, State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science
Jingguo Li: University of Science and Technology of China, State Key Laboratory of Advanced Environmental Technology, Department of Environmental Science and Engineering
Di Wang: University of Science and Technology of China, State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science
Liyu Gan: University of Science and Technology of China, State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science
Xu Liu: University of Science and Technology of China, State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science
Zeyu Feng: University of Science and Technology of China, State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science
Peng Yang: University of Science and Technology of China, State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science
Hongli Zhang: University of Science and Technology of China, State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science
Yifan Xie: University of Science and Technology of China, State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science
Fei Wang: University of Science and Technology of China, Division of Life Sciences and Medicine, The Department of Neurosurgery, The First Affiliated Hospital of USTC
Gang Zou: University of Science and Technology of China, State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science

Nature Communications, 2025, vol. 16, issue 1, 1-11

Abstract: Abstract Optical active metal-organic frameworks (MOFs) with circularly polarized luminescence (CPL) functionalities, have recently gained extensive research interest. However, the luminescence dissymmetry factors (glum) of these materials are generally small, and the lack of patterning ability for most optical active MOFs greatly hinders their practical applications. Herein, we report a strategy to design twisted-stacking MOF patterns with a high glum (~0.4) and tailorable CPL performance by the combination of brush coating, bottom-up heteroepitaxial growth and twisted-stacking techniques. Specifically, two-dimensional (2D) programmable patterns of highly oriented MOF films could be achieved by the heteroepitaxial growth from pre-aligned Cu(OH)2 nanowire (NW) templates. The oriented MOF patterns could be functionalized with fluorescent dyes, offering characteristic anisotropic photoluminescent response. After another similar highly oriented MOF layer was deposited on top of the above MOF/dye patterns (in a twisted fashion) as a phase retarder, a chiroptical response could be generated. This design not only allows the fabrication of arbitrary programmable optical active MOF patterns with enhanced glum, but also enables precise regulation of CPL performance within the patterns, favoring the implementation of the miniaturized chiroptical devices, information encryption and storage.

Date: 2025
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DOI: 10.1038/s41467-025-65310-0

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