Abstract
This study investigates the thermoelectric properties of Pb-doped p-type Bi_0.5Sb_1.5Te₃ alloys using the Single Parabolic Band (SPB) model, focusing on optimizing room-temperature performance. We systematically analyze the effects of Pb doping (0, 0.49, 0.65, 0.81, 0.97, and 1.3 at%) on key parameters including density-of-states effective mass (m_d *), non-degenerate mobility..... More

Abstract
SnTe has drawn much attention due to its Pb-free composition along with tunable electronic and lattice structures. However, its intrinsically high defect concentration and high lattice thermal conductivity (κ₁) have hindered its application in devices. Recently, Bi doping at Sn-sites in Sn_1-xBi_xTe (x = 0.0 – 0.08) has been demonstrated..... More