Temperature Effects on Mobile Charges in Thermopiezoelectric Semiconductor Plates

We study the temperature effects on mobile charges in a thermopiezoelectric semiconductor plate through pyroelectric and thermoelastic couplings. The macroscopic theory of thermopiezoelectric semiconductors is used. A set of two-dimensional (2D) equations is derived for extension and bending with sh...

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Bibliographic Details
Published inInternational journal of applied mechanics Vol. 13; no. 3; p. 2150037
Main Authors Qu, Yilin, Jin, Feng, Yang, Jiashi
Format Journal Article
LanguageEnglish
Published Singapore World Scientific Publishing Company 01.04.2021
World Scientific Publishing Co. Pte., Ltd
Subjects
Charge distribution
Couplings
Parameter identification
Physical properties
Research Article
Shear deformation
Temperature distribution
Temperature effects
thermopiezoelectric
piezotronics
plate
Piezoelectric
pyroelectric
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Summary:We study the temperature effects on mobile charges in a thermopiezoelectric semiconductor plate through pyroelectric and thermoelastic couplings. The macroscopic theory of thermopiezoelectric semiconductors is used. A set of two-dimensional (2D) equations is derived for extension and bending with shear deformation of the plate. A few solutions are obtained. Numerical results show that the distribution of the mobile charges in the plate can be manipulated by the temperature field. In the case of temperature-induced uniform extension, a combination of physical parameters is identified which characterizes the strength of the coupling between the temperature field and the mobile charge distribution. The results obtained are fundamental to piezotronic devices involving temperature effects.
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ISSN:1758-8251
1758-826X
DOI:10.1142/S175882512150037X