Hybrid printing of wearable piezoelectric sensors

Piezoelectricity provides an ideal electromechanical mechanism with emerging applications in wearable devices due to its simplicity and self-powered nature. However, the 3D printing of piezoelectric still faces many challenges, including material printability, high energy poling process, low dimensional accuracy. This study demonstrates, for first time, a tellurium nanowire-based device fabricated by hybrid method integrating highly complementary aerosol jet extrusion single platform. The aerosol-jet-printed nanowire demonstrates properties without need any processing unique nanowires. silver electrodes printed demonstrate excellent conductivity stretchability sintering. An is employed print silicone films, which serve as stretchable substrate electrical insulation layers between silver. were attached human wrist detect different hand gestures neck heartbeat using external power source. fully printed, sintering-free poling-free, opens enormous opportunities facile integration broad range electronics devices.