Self-Healing Sensors Based on Dual Noncovalent Network Elastomer for Human Motion Monitoring

文献类型： 外文期刊

第一作者： Cao, Jie

作者： Cao, Jie;Zhang, Xu;Lu, Canhui;Zhang, Xinxing;Luo, Yongyue

作者机构：

关键词： hydrogen bonding;metal-ligand coordination;self-healing;sensors;supramolecular structures

期刊名称：MACROMOLECULAR RAPID COMMUNICATIONS （ 影响因子：5.734； 五年影响因子：4.905 ）

ISSN： 1022-1336

年卷期： 2017 年 38 卷 23 期

页码：

收录情况： SCI

摘要： Nowadays, it is still a challenge to prepare flexible sensors with great mechanical strength, stretchability, high sensitivities, and excellent self-healing (SH) abilities. Herein, a nanostructured supramolecular elastomer is reported with a dual noncovalent network of hydrogen bonding interactions and metal-ligand coordination. The resultant flexible sensor presents ultrafast (30 s), autonomous, and repeatable SH ability with high healing efficiency (80% after the 3rd healing process), as well as enhanced mechanical properties. Benefitting from the 3D conductive network, the sensor exhibits high electrical sensitivity and very low detection limit (0.2% strain). As a result, the flexible sensor is capable of precisely monitoring small strains of human motions (such as vocal-cord vibration), and exhibits reproducible and recognizable current signals after cutting-healing process. The dual noncovalent network design proposed here opens up a new opportunity for scalable fabrication of high performance SH sensors and other electronic devices.

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