Ag doping enables high thermoelectric performance of cubic p-type (SnSe) 0.55 (PbTe) 0.45 polycrystals

-0.03Ag at 823 K increased to ∼0.8, and the fabricated single-leg device attained a power generation efficiency of ∼2% at a temperature difference of approximately 525 K. This strategy offers a valuable reference for the application of cubic phase SnSe-based materials in thermoelectric power generation.