Research Progress of Flexible Piezoresistive Sensors Based on Polymer Porous Materials

作者：Song Han, Sheng Li, Xin Fu, Shihui Han, Huanyu Chen, Liu Zhang, Jun Wang, Gaohui Sun · 发表于：ACS Sensors · 年份：2024 · DOI：10.1021/acssensors.4c00836 · 被引用次数：96 · 研究领域：Advanced Sensor and Energy Harvesting Materials、Conducting polymers and applications、Gas Sensing Nanomaterials and Sensors

Flexible piezoresistive sensors are in high demand in areas such as wearable devices, electronic skin, and human-machine interfaces due to their advantageous features, including low power consumption, excellent bending stability, broad testing pressure range, and simple manufacturing technology. With the advancement of intelligent technology, higher requirements for the sensitivity, accuracy, response time, measurement range, and weather resistance of piezoresistive sensors are emerging. Due to the designability of polymer porous materials and conductive phases, and with more multivariate combinations, it is possible to achieve higher sensitivity and lower detection limits, which are more promising than traditional flexible sensor materials. Based on this, this work reviews recent advancements in research on flexible pressure sensors utilizing polymer porous materials. Furthermore, this review examines sensor performance optimization and development from the perspectives of three-dimensional porous flexible substrate regulation, sensing material selection and composite technology, and substrate and sensing material structure design.