Ultrathin MoS Nanowire Network for High-Sensitivity Breathable Piezoresistive Electronic Skins.

Journal: ACS nano
PMID: 36825732

Abstract

Flexible piezosensing electronic skins (e-skins) have attracted considerable interest owing to their applications in real-time human-health monitoring, human-machine interactions, and soft bionic robot perception. However, the fabrication of piezosensing e-skins with high sensitivity, biological affinity, and good permeability at the same time is challenging. Herein, we designed and synthesized MoS nanowires by inserting [MoS] chains between MoS interlayers. The resulting MoS nanowires feature high conductivity (4.9 × 10 S m) and a high aspect ratio (∼200). An ultrathin (∼500 nm) MoS nanowire network was fabricated using a simple liquid/liquid interface self-assembly method, showing high piezoresistive sensitivity (5.65 kPa), a considerably low pressure detection limit (0.08 Pa), and gratifying air permeability. Moreover, this nanowire network can be directly attached to human skin for real-time human pulse detection, finger movement monitoring, and sign language recognition, exhibiting excellent potential for health monitoring and human-machine interactions.

Authors

  • Chendong Zhao
    State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, People's Republic of China.
  • Yuqiang Fang
    State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, People's Republic of China.
  • Hao Chen
    The First School of Medicine, Wenzhou Medical University, Wenzhou, China.
  • Shaoning Zhang
    State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, People's Republic of China.
  • Yingjie Wan
    State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, People's Republic of China.
  • Muhammad Sohail Riaz
    Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, People's Republic ofChina.
  • Zhuang Zhang
    Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan City, Shanxi Province, China.
  • Wujie Dong
    State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, People's Republic of China.
  • Lei Diao
    State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, People's Republic ofChina.
  • Dayong Ren
    College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China.
  • Fuqiang Huang
    The Department of Electrical and Systems Engineering, Washington University, St. Louis, MO, 63130, USA. fuqiang@wustl.edu.

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