A synergistic effect of metal iodide doping on the thermoelectric properties of Bi2Te3

The role of metal iodides on the thermoelectric properties of Bi₂Te₃ is investigated by conducting comparative studies of CuI, CsI and KI-doped Bi₂Te₃ analogs. The CuI dopant is superior to CsI and KI dopants in showing a larger power factor and lower lattice thermal conductivity.