Isostructural doping for organic persistent mechanoluminescence

Zongliang Xie, Yufeng Xue, Xianhe Zhang, Junru Chen, Zesen Lin and Bin Liu ()
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Zongliang Xie: National University of Singapore
Yufeng Xue: National University of Singapore
Xianhe Zhang: National University of Singapore
Junru Chen: National University of Singapore
Zesen Lin: National University of Singapore
Bin Liu: National University of Singapore

Nature Communications, 2024, vol. 15, issue 1, 1-8

Abstract: Abstract Mechanoluminescence, featuring light emission triggered by mechanical stimuli, holds immense promise for diverse applications. However, most organic Mechanoluminescence materials suffer from short-lived luminescence, limiting their practical applications. Herein, we report isostructural doping as a valuable strategy to address this challenge. By strategically modifying the host matrices with specific functional groups and simultaneously engineering guest molecules with structurally analogous features for isostructural doping, we have successfully achieved diverse multicolor and high-efficiency persistent mechanoluminescence materials with ultralong lifetimes. The underlying persistent mechanoluminescence mechanism and the universality of the isostructural doping strategy are also clearly elucidated and verified. Moreover, stress sensing devices are fabricated to show their promising prospects in high-resolution optical storage, pressure-sensitive displays, and stress monitoring. This work may facilitate the development of highly efficient organic persistent mechanoluminescence materials, expanding the horizons of next-generation smart luminescent technologies.

Date: 2024
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DOI: 10.1038/s41467-024-47962-6

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