Effect of a self-assembled 3D flower-like hierarchical architecture on the thermoelectric properties of Ag-doped Bi₂S₃

Abstract

Ag doping in Bi2S3 improved thermoelectric properties by lowering the bandgap, enhancing conductivity, and reducing thermal conductivity to 0.415 W mK−1via phonon scattering. At 543 K, 0.025% Ag-doped Bi2S3 achieved a power factor of 50.1 μW mK−2.