Fig. 1

(a) Schematic representation of an isotropic and homogeneous thermoelastic semiconductor with finite height (\(x=h\)) in the presence of an external heat source (Q) and magnetic field \((H_{0})\). (b) Typical energy band diagram of a crystalline semiconductor. Specifically, \(E_g\) plays a crucial role in characterising the intrinsic semiconductors into conductors by decreasing the electrical resistance.