Issue 13, 2024

Visible light excited and temperature-responsive phosphorescent system in a phase-changing matrix

Abstract

Reversibly switching visible light excited phosphorescence emission by external stimuli is highly challenging. Herein, we report a series of tetrakis(arylthio)benzene derivatives with a D–A structure, exhibiting visible-light excited room-temperature phosphorescence. Significantly, the emission from their crystalline powder state responded to mechanical forces, attributed to alterations in molecular stacking changes, resulting in their phosphorescence color changes. Moreover, the monomer and aggregated phosphorescence transition could be reversibly switched by temperature when doping these molecules into a phase-changing matrix saturated fatty acid (FA) because the FA matrix is transformed between solid and fluid states under different temperatures. In addition, multi-color luminescent materials were also obtained by further introducing triphenylamine dye molecules. Finally, these doping systems exhibited excellent application potential in temperature indication and anti-counterfeiting. This successful design strategy provides a new idea for preparing reversible external stimuli-responsive phosphorescent materials.

Graphical abstract: Visible light excited and temperature-responsive phosphorescent system in a phase-changing matrix

Supplementary files

Article information

Article type
Paper
Submitted
27 Mar 2024
Accepted
18 May 2024
First published
21 May 2024
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2024,5, 5572-5578

Visible light excited and temperature-responsive phosphorescent system in a phase-changing matrix

Y. Hu, G. V. Baryshnikov, X. Shan, W. Zhang, S. Zhao, L. Zhu and H. Wu, Mater. Adv., 2024, 5, 5572 DOI: 10.1039/D4MA00318G

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