Mesh-Architected Structurally Flexible Pb(Zr0.52Ti0.48)O3 Framework Enables Highly Sensitive and Stretchable Piezoelectric Sensors

A monolithic, structurally flexible, continuous Pb(Zr 0.52 Ti 0.48 )O 3 (PZT) piezoelectric fiber was innovatively fabricated through network architecture design. The PZT framework well inherited the macro- and micro-structure of the mesh fabric, endowing the PZT-silicone composite material with high stretchability up to 220%. The developed strain sensor exhibited both high stretchability (100%) and high sensitivity (39.57 mV kPa −1 ), thus enabling its application in subtle surface roughness perception and large-strain human motion monitoring.