Biologically Emulated Flexible Sensors With High Sensitivity and Low Hysteresis: Toward Electronic Skin to a Sense of Touch

• DOI: 10.1002/smll.202203044
• Publication Date: 2022-07-15T04:49:54Z
• Authors: Xiaohui Guo; Deyi Zhou; Weiqiang Hong; Dandan Wang; Tianqi Liu; Di Wang; Long Liu; Shencheng Yu; Yanjun Song; Su Bai; Yewei Li; Qi Hong; Yunong Zhao; Lei Xiang; Zhihong Mai; Guozhong Xing
• Keywords: Hysteresis; Repeatability; Electronic Skin; Wearable Technology

Abstract Recently, flexible pressure sensors (FPSs) have attracted intensive attention owing to their ability mimic and function as electronic skin. Some are exploited with a biological structure dielectric layer for high sensitivity detection. However, traditional bionic structures usually suffer from limited range high‐pressure scenes due hysteresis in the medium range. Here, reconfigurable flea FPS based on 3D printing technology, which can meet needs of different via tailoring dedicated structural parameters, is proposed. exhibits (1.005 kPa −1 0–1 kPa), wide detection (200 repeatability (6000 cycles 10 low (1.3%), fast response time (40 ms), very limit (0.5 Pa). Aiming at practical application implementation, has been correspondingly placed finger, elbow, arm, neck, cheek, manipulators detect actions various body parts, suggestive excellent applicability. It also integrated make 3 × sensor array detecting spatial distribution. The results indicate that significant potential advanced wearable technologies, such human motion monitoring.