Mechano-regulated metal–organic framework nanofilm for ultrasensitive and anti-jamming strain sensing

Liang Pan, Gang Liu (), Wenxiong Shi, Jie Shang, Wan Ru Leow, Yaqing Liu, Ying Jiang, Shuzhou Li, Xiaodong Chen () and Run-Wei Li ()
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Liang Pan: Chinese Academy of Sciences
Gang Liu: Chinese Academy of Sciences
Wenxiong Shi: Nanyang Technological University
Jie Shang: Chinese Academy of Sciences
Wan Ru Leow: Nanyang Technological University
Yaqing Liu: Nanyang Technological University
Ying Jiang: Nanyang Technological University
Shuzhou Li: Nanyang Technological University
Xiaodong Chen: Nanyang Technological University
Run-Wei Li: Chinese Academy of Sciences

Nature Communications, 2018, vol. 9, issue 1, 1-10

Abstract: Abstract The development of ultrasensitive, anti-jamming, and durable sensors that can precisely distinguish different human body motions are of great importance for smart health monitoring and diagnosis. Physical implementation of such flexible sensors is still a challenge at the moment. Combining the designs of advanced material showing excellent electrochemical properties with the facilitative structure engineering, high-performance flexible sensors that satisfy both signal detecting and recognition requirements may be made possible. Here we report the first metal–organic framework-based strain sensor with accurate signal detection and noise-screening properties. Upon doping the tricarboxytriphenyl amine-based metal–organic framework nanofilm with iodine, the two-terminal device exhibits ultrahigh sensitivity with a gauge factor exceeding 10,000 in the 2.5% to 3.3% deformation range for over 5000 dynamic operating cycles and out-of-scale noise-screening capability. The high-performance strain sensor can easily differentiate the moderate muscle hyperspasmia from subtle swaying and vigorous sporting activities.

Date: 2018
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DOI: 10.1038/s41467-018-06079-3

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