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A novel photo-elasto-thermodiffusion waves model based on electron-hole deformation of semiconductor medium
Faculty
Science
Year:
2022
Type of Publication:
ZU Hosted
Pages:
19
Authors:
Khaled Lotfy Mohamed Azab
Staff Zu Site
Abstract In Staff Site
Journal:
Waves in Random and Complex Media © 2019 Informa UK Limited, trading as Taylor & Francis Group
Volume:
Keywords :
, novel photo-elasto-thermodiffusion waves model based , electron-hole deformation
Abstract:
This article introduces a new mathematical, theoretical physics model for discussing the interaction between the electrons and holes in the semiconductor medium. The model has been studied in the context of the generalized elasto-thermodiffusion (ETD) theory of the photothermal (PT) transport processes. The governing equations give a detailed account of a one-dimensional (1D) deformation. The wave distribution inside the medium propagates without dispersion or attenuation. The basic equations are obtained in a non-dimensionalized case. The hole charge carrier, displacement, thermal, and plasma waves are coupled due to thermal variations. The Laplace transform method has been applied to solve the coupled governing equations. Some boundary conditions are applied to the interface adjacent to the vacuum to obtain the main physical quantities analytically in the Laplace domain. The inversion of the Laplace transform is applied with a numerical method to obtain the complete solutions in the time domain for the basic physical fields in this phenomenon. The consequences of thermoelasticity, the phase lag (relaxation time) of the temperature gradient, and the phase lag of the heat flux are graphically derived and explained in comparison to silicon and germanium semiconductor materials.
Author Related Publications
Khaled Lotfy Mohamed Azab, "Analytical solution of fractional order heat equation under the effects of variable thermal conductivity during photothermal excitation of spherical cavity of semiconductor medium", © 2019 Informa UK Limited, trading as Taylor & Francis Group, 2019
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Khaled Lotfy Mohamed Azab, "Thermal Ramp Type of Photo-Thermal Excitation in Hall Current and Variable Thermal Conductivity of Semiconductor Elastic Material", # Springer Nature B.V. 2020, 2020
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Khaled Lotfy Mohamed Azab, "Normal Mode Method for Two-Temperature Generalized Thermoelasticity under Thermal Shock Problem", Taylor & Francis, 2014
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Khaled Lotfy Mohamed Azab, "The effect of a magnetic field on a 2D problem of fibre-reinforced thermoelasticity rotation under three theories,", Chinese, 2014
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Khaled Lotfy Mohamed Azab, "Mode-I crack in a two-dimensional fibre-reinforced generalized thermoelastic problem,", Chinese, 2014
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