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Electromechanical Fields in Piezoelectric Semiconductor Nanofibers under an Axial Force

Published online by Cambridge University Press:  24 April 2017

C.L. Zhang ,
Y.X. Luo ,
R.R. Cheng  and
X.Y. Wang
C.L. Zhang*
Affiliation:
Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China Soft Matter Research Center (SMRC), Zhejiang University, Hangzhou, 310027, China Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Hangzhou, 310027, China
Y.X. Luo
Affiliation:
Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
R.R. Cheng
Affiliation:
Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
X.Y. Wang
Affiliation:
Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
*
*(Email: zclwei@zju.edu.cn)

Abstract

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Piezoelectric semiconductors (PS) nanofibers, which simultaneously exhibit piezoelectricity and unique electric conductive behavior, have huge applications in sensors, energy harvesters, and piezoelectric field effect transistors. Electromechanical fields and charge carrier in PS nanofibers can be effectively controlled by a mechanical force. One-dimensional linear equations for PS nanofibers, which are suitable for small axial force and small electron concentration perturbation, are presented. Analytical expressions for the electromechanical fields and electron concentration in the fiber are obtained. Numerical results show that the electromechanical fields near the two ends are sensitive to the initial electron concentration and the applied axial force.

Keywords

devicespiezoelectricsemiconducting
Type
Articles
Information
MRS Advances , Volume 2 , Issue 56: Energy Storage and Conversion , 2017 , pp. 3421 - 3426
Copyright
Copyright © Materials Research Society 2017 

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