Thiolated Graphene@Polyester Fabric-Based Multilayer Piezoresistive Pressure Sensors for Detecting Human Motion

• DOI: 10.1021/acsami.8b16027
• Publication Date: 2018-11-05T12:47:45Z
• Authors: Lin Zhang; Hongqiang Li; Xuejun Lai; Tianyuan Gao; Jian Yang; Xingrong Zeng
• Keywords: Piezoresistive effect; Electronic Skin; Wearable Technology

In the past several years, wearable pressure sensors have engendered a new surge of interest worldwide because their important applications in areas health monitoring, electronic skin, and smart robots. However, it has been great challenge to simultaneously achieve wide pressure-sensing range high sensitivity for until now. Herein, we proposed an innovative strategy construct multilayer-structure piezoresistive with situ generated thiolated graphene@polyester (GSH@PET) fabric via one-pot method. Taking advantage spacing among rough layers highly conductive GSH, sensor realized not only (0–200 kPa), but also (8.36 0.028 kPa–1 ranges 0–8 30–200 kPa, respectively). After 500 loading–unloading cycles, still kept stable response, exhibiting potential long-term practical applications. Importantly, was successfully applied accurately detect different human behaviors including pulse, body motion, voice recognition. Additionally, sensing network integrated by mapping identifying spatial distribution. Our method wide-range high-sensitivity is facile, cost-effective, available mass production. The findings provide direction fabricate new-generation high-performance healthcare, interactive devices,