Influence of decaying heat source and temperature-dependent thermal conductivity on photo-hydro-elasto semiconductor media

Abstract This research examines the impact of varying thermal conductivity within the framework of generalized photo-thermoelastic theory in a thermo-hydrodynamic semiconductor material. The changes in thermal conductivity are presented to evaluate the wave distributions of temperature, carrier density, excess pore water pressure, stress, and displacement in a poroelastic (poro-silicon, PSi) material. The integrated model of thermoelasticity, hydro-mechanics, and plasma waves is examined. The normal mode analysis is employed to provide the analytical solution of the distribution of the researched fields as components of this phenomenon. The findings are demonstrated about the effects of the thermal conductivity parameter as the heat source decays. A comparison of the numerical results with prior analytical studies is conducted, excluding the new parameter, and the behaviors of physical quantities in the numerical solutions are analyzed to validate the accuracy of the proposed technique. All physical quantities are influenced by changing thermal conductivity.