An Extensive Review of Piezoelectric Energy-Harvesting Structures Utilizing Auxetic Materials

Abstract

BackgroundToday, energy harvesting is a hot topic in the scientific community because of the scarcity and insufficiency of energy resources. Piezoelectric systems have been proven by many studies to be very efficient in energy harvesting. In addition, an increase in efficiency has been observed by using auxetic materials in piezoelectric systems due to their extraordinary properties. Because of its capability to sustainably provide wireless sensors and portable electronic devices, a worldwide effort is being made to capture energy using the mechanical vibrations of the environment.PurposeThe main purpose was to understand auxetic materials and piezoelectric systems more clearly by making a comprehensive compilation.MethodsThis review article investigated an auxetic piezoelectric energy harvester (APEH) system focusing on the structure of auxetic materials along with their behavior and efficiency in the system.ResultsAs a result of general examinations, it was seen that structures with negative Poisson ratios were much more efficient in energy harvesting in this type of system compared to conventional structures.ConclusionDue to APEH's advantages such as simplicity, scalability, and high-power production, piezoelectric energy harvesting has gained more popularity than other vibration-based energy harvesting methods.