Issue 7, 2024

Metal chalcogenide nanorings for temperature–strain dual-mode sensing

Abstract

Most metal chalcogenides exhibit layered structures and anisotropic morphologies such as nanosheets, nanoplates, and nanotubes, as well as nanosheet-assembled nanoflowers. Unconventional morphologies such as nanorings may bring appealing properties to functional materials, but they have not been realized with metal chalcogenides. Herein, we report that Sn0.2Mo0.8S2 nanorings with a mixed 1T/2H phase were synthesized by etching SnS2 cores from Sn1−xMoxS2/SnS2 lateral heterostructures. Flexible electronic sensors based on these Sn0.2Mo0.8S2 nanorings exhibited excellent temperature and strain sensing performance, with a negative temperature coefficient of resistance of −0.013 °C−1 and a minimum detectable strain of 0.09%. In addition, the dual-functional flexible electronic sensors with easy fabrication and good wearability showed great promise for tracking human activities and monitoring inapparent health-related signals.

Graphical abstract: Metal chalcogenide nanorings for temperature–strain dual-mode sensing

Supplementary files

Article information

Article type
Paper
Submitted
02 נוב 2023
Accepted
06 ינו 2024
First published
08 ינו 2024

Nanoscale, 2024,16, 3484-3491

Metal chalcogenide nanorings for temperature–strain dual-mode sensing

X. Wang, J. Zhang, P. Liu, D. Wei, D. Tian, S. Liu, Q. Chen, J. Cao, Z. Wang and X. Huang, Nanoscale, 2024, 16, 3484 DOI: 10.1039/D3NR05561B

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