Strengthened phonon scattering and band convergence synergistically realize the high-performance SnTe thermoelectric
Gang Wu, Zhe Guo, Xiaojian Tan, Ruoyu Wang, Qiang Zhang, Haoyang Hu, Peng Sun, Jiehua Wu, Guoqiang Liu, Jun Jiang
Abstract
By combining the effects of defect engineering, band convergence, and carrier concentration tuning, we successfully suppress the lattice thermal conductivity to ultra-low 0.35 W m −1 K −1 and realize one of the highest ZT values of 1.75 at 833 K.
Topics & Concepts
Thermoelectric effectPhonon scatteringPhononCondensed matter physicsConvergence (economics)Materials scienceScatteringThermoelectric materialsThermal conductivityOptoelectronicsPhysicsOpticsQuantum mechanicsComposite materialEconomicsEconomic growthAdvanced Thermoelectric Materials and DevicesThermal properties of materialsThermal Radiation and Cooling Technologies