Issue 6, 2021, Issue in Progress

Piezoelectric property comparison of two-dimensional ZnO nanostructures for energy harvesting devices

Abstract

In this paper, experimental and theoretical studies of the piezoelectric effect of two-dimensional ZnO nanostructures, including straight nanosheets (SNSs) and curved nanosheets (CNSs) are conducted. The results show that the CNSs have a great advantage in piezoelectric property over the SNSs; the maximum output current of the NG based on CNSs was measured to be about 260 nA, much higher than that generated by SNSs. For comparatively analyzing the working mechanics of both NGs, the piezopotential distribution of both CNS and SNS structures was studied using the finite element method. The simulation result that the piezopotential generated by CNSs is always much larger than that generated by SNSs in the case of lateral bending, has more advantages for piezoelectric NGs than the SNSs. This work may provide guidance for structural optimization of piezoelectric nanogenerators and designing high-performance self-powered strain sensors.

Graphical abstract: Piezoelectric property comparison of two-dimensional ZnO nanostructures for energy harvesting devices

Article information

Article type
Paper
Submitted
09 Dec 2020
Accepted
04 Jan 2021
First published
18 Jan 2021
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2021,11, 3363-3370

Piezoelectric property comparison of two-dimensional ZnO nanostructures for energy harvesting devices

A. Yang, Y. Qiu, D. Yang, K. Lin and S. Guo, RSC Adv., 2021, 11, 3363 DOI: 10.1039/D0RA10371C

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