Piezoelectric energy harvesting based on ZnO: A review

• Published in: AIP Conference Proceedings
• Main Author: Kamaruzaman D.; Ahmad N.; Rosly M.A.; Mamat M.H.
• Format: Conference paper
• Language: English
• Published: American Institute of Physics Inc. 2021
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102393674&doi=10.1063%2f5.0044476&partnerID=40&md5=46b1db056a37079abb66932f8c533e1e

This paper reviews the piezoelectricity in the ZnO which having enough feasibility for flexible piezoelectric energy harvesting. ZnO is chosen as a new lead-free replacement material of PZT due to its great advantages for piezoelectric material. The low cost and small-time require for the synthesis of ZnO thin films for industrial requirements are always a need. The ZnO nanostructures can be used in applications such as foldable or re-formable power sources, artificial skins, touch sensors, and flexible displays. It is also possible for ZnO nanostructures to generate the current and potential under an external mechanical strain. The mechanism of the power generator relies on the piezoelectric and semiconducting properties of ZnO as well as the formation of a Schottky barrier between the metal and ZnO contacts. ZnO is piezoelectric material which is popularly used as one of the pollution-free piezoelectric material and has the additional advantage of flexibility in processing. This paper reviews the reported piezoelectric energy harvesting of ZnO material and piezoelectric device configurations. © 2021 American Institute of Physics Inc.. All rights reserved.