Ultrasensitive wearable pressure sensors based on Silver nanowire-coated fabrics

Abstract

Flexible pressure sensors have attracted increasing attention due to their potential applications in wearable human health monitoring and care systems. Herein, we present a facile approach for fabricating all-textile-based piezoresistive pressure sensor with integrated Ag nanowire-coated fabrics. It fully takes advantage of the synergistic effect of the fiber/yarn/fabric multi-level contacts, leading to the ultrahigh sensitivity of 3.24×10 5 kPa −1 at 0–10 kPa and 2.16×10 4 kPa −1 at 10–100 kPa, respectively. Furthermore, the device achieved a fast response/relaxation time (32/24 ms), and a high stability (>1000 loading/unloading cycles). Thus, such all-textile pressure sensor with high performance is expected to be applicable in the fields of smart cloths, activity monitoring and healthcare device.

基于光电子技术的智能可穿戴纺织品

“…5 Textilebased sensors. (a) Fabricating process of capacitive flexible pressure sensor [107] ; (b) fabricating process and working mechanism of the piezoresistive pressure sensor [108] ;(c) fabricating process and working mechanism of the electronic skin based on the piezoelectric, triboelectric, and piezoresistive theory [109] ; (d) fabricating process and the schematic diagram of the capacitive strain sensor [98] 1316004 -8 [122] ;(b) photograph of the photovoltaic fabric and fabricating process of the solar module [123] 1316004 -9…”