An Ultrawide-range Photochromic Molecular Fluorescence Emitter

Overview

Journal Nat Commun

Specialty Biology

Date 2024 Jun 26

PMID 38926352

Authors

Xiao Chen

Xiao-Fang Hou

Xu-Man Chen

Quan Li

Affiliations

Soon will be listed here.

Abstract

Photocontrollable luminescent molecular switches capable of changing emitting color have been regarded as the ideal integration between intelligent and luminescent materials. A remaining challenge is to combine good luminescence properties with wide range of wavelength transformation, especially when confined in a single molecular system that forms well-defined nanostructures. Here, we report a π-expanded photochromic molecular photoswitch, which allows for the comprehensive achievements including wide emission wavelength variation (240 nm wide, 400-640 nm), high photoisomerization extent (95%), and pure emission color (<100 nm of full width at half maximum). We take the advantageous mechanism of modulating self-assembly and intramolecular charge transfer in the synthesis and construction, and further realize the full color emission by simple photocontrol. Based on this, both photoactivated anti-counterfeiting function and self-erasing photowriting films are achieved of fluorescence. This work will provide insight into the design of intelligent optical materials.

Citing Articles

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Gao Z, Xie X, Zhang J, Yuan W, Yan H, Tian W Nat Commun. 2024; 15(1):10762.

PMID: 39737958 PMC: 11686131. DOI: 10.1038/s41467-024-55106-z.

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