Energy harvesting of traditional cantilever-based mems piezoelectric energy harvester

Abstract

Wireless sensor networks are important developments in remote sensing applications. Supplying power to these systems is invincible one, and replacing batteries all the time is inefficient and not an appropriate solution. Piezoelectric materials convert mechanical energy into electrical energy from the external vibration of the environment through its direct piezoelectric effect. In this paper, rectangular with and without hole based unimorph piezoelectric cantilever geometries are proposed using finite element method simulation and analysis developed. The outcomes display that the rectangle with hole piezoelectric structure is having a lower resonant frequency and harvests more energy compared to other structures.