Synergistic modulation of thermoelectric performance in SnTe via Ge alloying and Sb doping

Key Points

• The aim is to improve the thermoelectric performance of SnTe through alloying with Ge and doping with Sb.
• Measured thermoelectric properties of SnTe samples with varying Ge and Sb concentrations.
• Analyzed the effects on Seebeck coefficient, electrical conductivity, and thermal conductivity.
• Compared performance metrics to conventional PbTe.
• Ge alloying significantly reduced thermal conductivity, enhancing performance.
• Sb doping improved the Seebeck coefficient, leading to better thermoelectric efficiency.
• Optimized composition led to a performance increase over standard SnTe.