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. 2023 Sep 2;14:5355. doi: 10.1038/s41467-023-41121-z

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — a Illustration of the advantages of COF-919 with planar and twisted monomers. b UV/vis light absorption spectra of AIE COFs. Steady-state (c) and time-resolved (d) photoluminescence spectra of AIE COFs. e, f Band gap of COF-818 and COF-919. g Binding energy of COF-818 and COF-919. h Band structure of COF-818 and COF-919. i DFT calculations for COF-818 and COF-919. Source data are provided as a Source Data file.