Application of Highly flexible self-powered sensors via sequentially deposited piezoelectric fibers on printed circuit board for wearable electronics devices

Consistently, sequentially and spatially controlled stacking of piezoelectric polyvinylidene fluoride (PVDF) fibers in three-dimensional (3D) configurations is successfully demonstrated via Near-field electrospinning (NFES) technique. In application, a highly flexible and PVDF fibers based sensor is integrated with printed circuit board (PCB) substrates. The proposed self-powered sensor exhibits lightweight, low cost, easily scale-up production and high stability. By using a sequentially deposited the three-dimensional structures for the enhancement of power generating capability, the PCB-based self-powered sensor (PSS) can be directly applied to make smart gloves for human–machine interfaces (HMI) of wirelessly controlled machines.