机械电学超材料实现宽范围高灵敏度压力传感

Mechanoelectrical metamaterials for broad-range, high-sensitivity pressure sensing Feifan Yang1†, Haoming Yang2†, Guangzu Zhang1*, Shiyi Xu2, Lin Zhu1, Xuetian Gong1, Lulu Liu1, Fangyuan Luo1, Shuhan Xu2, Chunlei Liu3, Jiamin Wu3, Shenglin Jiang1, Kanghua Li1, Lijie Dong4,5, Xin Chen6, Sulin Zhang7, Yao Zhang2,8*, Qing Wang9* Mechanical metamaterials exploit precise control of unit-cell geometry and their macroscopic organization to realize unusual properties. Expanding the capabilities of mechanical metamaterials to incorporate additional functionality remains a challenge. We describe 3D-printed metamaterials embedded with molecular ferroelectrics for use as self-powered pressure sensors. Our gradient lattice design allows for adaptive reconfiguration and controlled deformation-mode transitions, yielding a synergy of low modulus and high load-bearing capacity alongside a monotonic mechanical load–electrical signal response. …