Flexible and Transparent Electronic Skin Sensor with Sensing Capabilities for Pressure, Temperature, and Humidity

• DOI: 10.1021/acsami.3c03829
• Publication Date: 2023-05-10T19:39:25Z
• Authors: Liangren Chen; Youquan Xu; Yinfeng Liu; Jing Wang; Jianwen Chen; Xiaohua Chang; Yutian Zhu
• Keywords: Ambient pressure; Vinyl alcohol

Inspired by the interlocked biological geometry of human skin, herein, we design a flexible and transparent sensor with square column arrays composites Ag nanoparticles (AgNPs), citric acid (CA), poly(vinyl alcohol) (PVA), which exhibit multisensory capabilities for pressure, temperature, humidity. As pressure sensor, AgNPs/CA/PVA possesses high sensitivity (-1.82 kPa-1), low detection limit (10 Pa), fast response (75 ms), outstanding stability due to contact resistance pressure. Because rigid dependence composite on can also act as temperature exhibits resolution (0.1 °C) reliability in detecting ambient temperature. In addition, it is found that amount water molecules adsorbed PVA CA changes Therefore, able detect humidity real time. This work proposes simple but useful route fabricate electrical skin has great potential perception