Stress-induced potential barriers and charge distributions in a piezoelectric semiconductor nanofiber

doi:10.1007/s10483-019-2481-6

Applied Mathematics and Mechanics (English Edition) ›› 2019, Vol. 40 ›› Issue (5): 591-600.doi: https://doi.org/10.1007/s10483-019-2481-6

• 论文 • 下一篇

Stress-induced potential barriers and charge distributions in a piezoelectric semiconductor nanofiber

Shuaiqi FAN¹, Yuantai HU¹, Jiashi YANG²

1. Department of Mechanics, Hubei Key Laboratory of Engineering Structural Analysis and Safety Assessment, Huazhong University of Science and Technology, Wuhan 430074, China;
2. Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0526, U. S. A

收稿日期:2018-09-12 修回日期:2018-11-20 出版日期:2019-05-01 发布日期:2019-05-01
通讯作者: Yuantai HU E-mail:hudeng@263.net
基金资助:
Project supported by the National Natural Science Foundation of China (Nos. 11672113 and 51435006) and the Key Laboratory Project of Hubei Province of China (No. 2016CFA073)

Stress-induced potential barriers and charge distributions in a piezoelectric semiconductor nanofiber

Shuaiqi FAN¹, Yuantai HU¹, Jiashi YANG²

1. Department of Mechanics, Hubei Key Laboratory of Engineering Structural Analysis and Safety Assessment, Huazhong University of Science and Technology, Wuhan 430074, China;
2. Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0526, U. S. A

Received:2018-09-12 Revised:2018-11-20 Online:2019-05-01 Published:2019-05-01
Contact: Yuantai HU E-mail:hudeng@263.net
Supported by:
Project supported by the National Natural Science Foundation of China (Nos. 11672113 and 51435006) and the Key Laboratory Project of Hubei Province of China (No. 2016CFA073)

摘要/Abstract

摘要： The performance of a piecewise-stressed ZnO piezoelectric semiconductor nanofiber is studied with the multi-field coupling theory. The fields produced by equal and opposite forces as well as sinusoidally distributed forces are examined. Specific distributions of potential barriers, wells, and regions with effective polarization charges are found. The results are fundamental for the mechanical tuning on piezoelectric semiconductor devices and piezotronics.

关键词: ZnO nanofiber, plane and anti-plane strain, mixed-mode crack tip, anisotropic plastic stress, mechanical tuning, multi-field coupling theory, potential barrier, potential well

Abstract: The performance of a piecewise-stressed ZnO piezoelectric semiconductor nanofiber is studied with the multi-field coupling theory. The fields produced by equal and opposite forces as well as sinusoidally distributed forces are examined. Specific distributions of potential barriers, wells, and regions with effective polarization charges are found. The results are fundamental for the mechanical tuning on piezoelectric semiconductor devices and piezotronics.

Key words: plane and anti-plane strain, mixed-mode crack tip, anisotropic plastic stress, ZnO nanofiber, multi-field coupling theory, mechanical tuning, potential well, potential barrier

中图分类号:

82D37

Shuaiqi FAN, Yuantai HU, Jiashi YANG. Stress-induced potential barriers and charge distributions in a piezoelectric semiconductor nanofiber[J]. Applied Mathematics and Mechanics (English Edition), 2019, 40(5): 591-600.

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Stress-induced potential barriers and charge distributions in a piezoelectric semiconductor nanofiber

Stress-induced potential barriers and charge distributions in a piezoelectric semiconductor nanofiber

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