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. 2023 Apr 6;14:1922. doi: 10.1038/s41467-023-37171-y

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© The Author(s) 2023

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Fig. 1 — a Chemical structures of alkoxybenzyl substituted PBIs. b Photographs of the corresponding powders upon UV irradiation (365 nm) and daylight as well as fluorescence images of single crystals with exposure time of 158 milliseconds.