Pushing Pressure Detection Sensitivity to New Limits by Modulus‐Tunable Mechanism

作者：Jing Yang, Guojiang Yuan, Yong Shen, Caili Guo, Zhibin Li, Fengling Yan, Xiaolong Chen, Lin Mei, Taihong Wang · 发表于：Advanced Science · 年份：2024 · DOI：10.1002/advs.202403779 · 被引用次数：10 · 研究领域：Advanced Sensor and Energy Harvesting Materials、Advanced MEMS and NEMS Technologies、Dielectric materials and actuators

Abstract Only microstructures are used to improve the sensitivity of iontronic pressure sensors. By modulating the compressive modulus, a breakthrough in the sensitivity of the iontronic pressure sensor is achieved. Furthermore, it allows for programmatic tailoring of sensor performance according to the requirements of different applications. Such a new strategy pushes the sensitivity up to a record‐high of 25 548.24 kPa −1 and expands the linear pressure range from 15 to 127 kPa. Additionally, the sensor demonstrates excellent mechanical stability over 10 000 compression‐release cycles. Based on this, a well‐controlled robotic hand that precisely tracks the pressure behavior inside a balloon to autonomously regulate the gripping angle is developed. This paves the way for the application of iontronic pressure sensors in precise sensing scenarios.