Simulation study on piezoelectric characteristics of two-dimensional ZnO nanodiscs

Micro & nano letters

article

Dechao Yang¹  Yu Qiu²  Shengli Fang²  Wenbin Song¹ 

[1] Department of Electronic Engineering, Dalian Neusoft University of Information;School of Physics and Optoelectronic Technology, Dalian University of Technology;The Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology

关键词: wide band gap semiconductors;    piezoelectricity;    semiconductor growth;    zinc compounds;    nanostructured materials;    nanofabrication;    finite element analysis;    piezoelectric devices;    durability;    II-VI semiconductors;    piezoelectric characteristics;    high-performance piezoelectric nanogenerators;    aqueous solution method;    flexible indium tin oxide coated polyethylene terephthalate substrates;    2D ZnO nanodiscs;    high-performance piezo-nanodevices;    mechanical durability;    finite element method;    COMSOL Multiphysics;    piezopotential size-dependent simulation analysis;    ZnO;    In2SnO5;   

DOI  :  10.1049/mnl.2019.0165

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Two-dimensional (2D) zinc oxide (ZnO) nanostructures have emerged as an attractive approach for constructing high-performance piezoelectric nanogenerators (NGs) because of their high rate of surface area to volume and good mechanical durability for applications in energy conversion devices. However, there has been to date no comprehensive study on piezoelectric characteristics of 2D ZnO nanostructures. In this paper, 2D nanodiscs have been prepared by aqueous solution method on flexible indium tin oxide coated polyethylene terephthalate substrates. Also, the piezoelectric characteristics are statistically demonstrated and analysed on the as-grown 2D ZnO nanodiscs by applying different external force with the finite element method (COMSOL Multiphysics). Besides, the size-dependent simulation analysis of piezopotentials is also conducted for further optimising output performance of NGs based on 2D ZnO nanostructures. Also, the simulation will provide a guideline for designing high-performance piezo-nanodevices.

【 授权许可】

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