Hybrid Configuration of Microstructure Based on Nanomaterial for Strain Perception with High Sensitivity and Ultrabroad sensing range

Abstract

Herein, we demonstrate that flexible and stretchable e-skins with superior multi direction-perception capability, exceptional sensitivity, ultrawide detection range, and tunable sensing performance can be generated in a highly simple fashion by shaping a piezoresistive CNT composite into microscale pillar–wrinkle-integrated hybrid architectures. Owing to the unique hierarchical topography of the hybrid architectures, the assembled electronic skin exhibits versatile and superior sensing performance, which includes multiaxial force detection, remarkable sensitivity, ultrabroad sensing range, tunability, fast response time, high durability and spatial distributions of diverse mechanical stimuli. Furthermore, finite element analysis (FEA) is performed to understand the underlying mechanism of the superior sensing performance of the hybrid e-skin.