Ultra-low Lattice Thermal-conductivity Realizes Ultra-High Performance Bi0.48Sb1.52Te3-Based Thermoelectric Material and Module

By adding “weakly-active” SGPT and Cu, differentiated electro-phonon scattering centers are induced to significantly suppress κ ph with μ less affected, leading to a ZT ave of 1.32 and a η of 6.8%.