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Supramolecular complex strategy for pure organic multi-color luminescent materials and stimuli-responsive luminescence switching

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Abstract

Pure organic multi-color luminescent materials were developed using a supramolecular complex strategy based on a high-efficiency blue-emitting anthracene derivative, in which the emission color can be finely tuned from blue through green to red due to the different co-former compositions and stacking modes in the crystal. Experimental and theoretical investigations demonstrate that the excited-state characteristics are essentially responsible for multi-color fluorescence emission with tunable lifetime and efficiency, corresponding to the different excited-state species (e.g., monomer, excimer-like aggregate and exciplex) in the crystals, respectively. Meanwhile, these supramolecular complexes exhibit intriguing mechanochromic and solvent-induced luminescence switching in the stimuli-responsive field. This work not only provides a better understanding of the structure–property relationship between intermolecular complexes and fluorescence properties, but also suggests a feasible strategy to develop a new class of organic solid-state luminescent materials with multi-color fluorescence.

Graphical abstract: Supramolecular complex strategy for pure organic multi-color luminescent materials and stimuli-responsive luminescence switching

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Supplementary files

Article information


Submitted
04 Apr 2021
Accepted
14 Jun 2021
First published
14 Jun 2021

CrystEngComm, 2021, Advance Article
Article type
Paper

Supramolecular complex strategy for pure organic multi-color luminescent materials and stimuli-responsive luminescence switching

Y. Shen, S. Wang, X. Zhang, N. Li, H. Liu and B. Yang, CrystEngComm, 2021, Advance Article , DOI: 10.1039/D1CE00449B

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