"Piezoelectric energy harvesting is the most popular technique for generating electricity from vibrations to power small electronic devices. Batteries, the main source of power, have drawbacks in terms of limited life span and the difficulty of using it in remote places. The goal is to eliminate the need for periodic battery replacement or external power sources in situations where this would otherwise be difficult or impossible to provide, such as remote wireless sensors used in hazardous environments or for structural health monitoring applications. Piezoelectric energy harvesting devices could be a good alternative to batteries because of its reliability, easy processability, and cleanliness. Selecting piezoelectric materials is however a challenging task; there are different types of piezoelectric materials, such as natural crystal (quartz, Rochelle salt, and many more), ceramic, polymer, and hybrid piezoelectric materials. It is also well known that individual piezoelectric materials have different advantages but at the same time have various inherent limitations. Hence, the development of hybrid piezoelectric materials could be the better option as compared to individual piezoelectric materials. In hybrid piezoelectric materials, all the properties of the individual piezoelectric materials are compensated."-- Provided by publisher.