Effective Piezoelectric Energy Harvesting for Self-Supplied IoT Gadgets

Abstract

Information and Communication Technology (ICT) are integral to Smart Cities (SC). Smart sensor gadgets will
leverage 5G and the Internet of Things (IoT), facilitating secure and prompt communication. The demand for
sustainable energy sources and autonomous active detectors will persist as a significant challenge in this field. Since
their inception, Piezoelectric (PE) Energy Harvesting (EH) devices have exhibited considerable efficacy in powering
wireless sensor nodes and their utilization across various systems, such as autonomous vehicles, intelligent healthcare,
interfaces between humans and machines, and safety devices, which have been thoroughly examined. PE-EH devices
are viable options for sustainably feeding wireless sensor nodes and creating intelligent, self-sustaining sensors
applicable in various fields. This study reviews multiple uses of PE-EH for feeding IoT devices and gadgets in SC.