Issue 3, 2023

Atmospheric humidity-triggered reversible spin-state switching

Abstract

The practical application of molecular switches is highly dependent on the reversible spin-state switching under ambient conditions, which needs a delicate materials design. Here, by confining a spin-crossover material into a sponge, the challenging goal of reversible spin-state switching in the solid state under ambient conditions has been realized, upon irradiation with a 980 nm laser for 120 s followed by shutting off the laser for 150 s. More importantly, further integration of the hygroscopic material has endowed the sponge with the merits of effective atmospheric humidity-triggered reversible spin-state switching under ambient conditions for the first time, accompanied by a reversible color variation upon naturally occurring humidity capture/release cycles. This work is expected to provide a fairly good strategy for developing novel molecular switches triggered by natural energy sources at the device level.

Graphical abstract: Atmospheric humidity-triggered reversible spin-state switching

Supplementary files

Article information

Article type
Paper
Submitted
04 Nov. 2022
Accepted
05 Dec. 2022
First published
06 Dec. 2022

J. Mater. Chem. A, 2023,11, 1232-1238

Atmospheric humidity-triggered reversible spin-state switching

Y. Luo, H. Dong, S. Ma, F. Zeng, X. Jin and M. Liu, J. Mater. Chem. A, 2023, 11, 1232 DOI: 10.1039/D2TA08632H

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