Ultrasensitive Wearable Pressure Sensors Based on Silver Nanowire-Coated Fabrics
Yunlu Lian, He Yu, Mingyuan Wang, Xiaonan Yang, Hefei Zhang
Abstract
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.