Improved thermoelectric performance of BiCuSeO by Ag substitution at Cu site

The heavy element (Ag) doping at Cu site was explored to investigate its effect on the thermoelectric properties of BiCuSeO. It is found that Cu site is also an effective doping sites to interrupt the thermoelectric conductivity compared to the traditional Bi site and results in an enhanced ZT value compared to the un-doped BiCuSeO.213