Effects of flexoelectricity and surface elasticity on piezoelectric potential in a bent ZnO nanowire

1st International Conference on New Material and Chemical Industry

材料科学;化学工业

Zhang, Shuangzhe^1 ; Yao, Haiyan^1 ; Fan, Wenliang^1 ; Hao, Yu^1 ; Wu, Xudong^1 ; Hou, Dongyuan^1

College of Ordos, Inner Mongolia University, Ordos

017000, China^1

关键词: Core surfaces;    Flexoelectricity;    Piezoelectric potential;    Surface elasticities;    ZnO nanowires;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/167/1/012023/pdf
DOI  :  10.1088/1757-899X/167/1/012023

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this work, a rapid model is established to study the effects of flexoelectricity and surface elasticity on the piezoelectric potential of a bent ZnO nanowire. Based on the piezoelectric theory and core-surface model, the distribution of piezoelectric potential of the ZnO nanowire is investigated. The analytical solution shows that the flexoelectricity and surface elasticity both significantly influence the piezoelectric potential. However, the effect of flexoelectricity is longitudinal dependent, which vanishes on the top side of nanowire, but only left surface elasticity effect on the potential. Simulation results show that the maximum value of potential on the top side of nanowire is about 220.5mV, of which result is lower compared to other theoretical models, but it should be more reasonable.