压电
半导体
纳米纤维
扩展(谓词逻辑)
材料科学
复合材料
光电子学
纳米技术
结构工程
工程类
计算机科学
程序设计语言
作者
Chuanzeng Zhang,Xiaoyuan Wang,Weiqiu Chen,Jiashi Yang
标识
DOI:10.1088/1361-665x/aa542e
摘要
This paper presents a theoretical analysis on the axial extension of an n-type ZnO piezoelectric semiconductor nanofiber under an axial force. The phenomenological theory of piezoelectric semiconductors consisting of Newton's second law of motion, the charge equation of electrostatics and the conservation of charge was used. The equations were linearized for small axial force and hence small electron concentration perturbation, and were reduced to one-dimensional equations for thin fibers. Simple and analytical expressions for the electromechanical fields and electron concentration in the fiber were obtained. The fields are either totally or partially described by hyperbolic functions relatively large near the ends of the fiber and change rapidly there. The behavior of the fields is sensitive to the initial electron concentration and the applied axial force. For higher initial electron concentrations the fields are larger near the ends and change more rapidly there.
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