Bi–Zn codoping in GeTe synergistically enhances band convergence and phonon scattering for high thermoelectric performance
Zhe Guo, Qiang Zhang, Hongxiang Wang, Xiaojian Tan, Fanfan Shi, Chenglong Xiong, Na Man, Haoyang Hu, Guoqiang Liu, Jun Jiang
Abstract
Bi–Zn codoping promotes valence band convergence and strengthens multiple defect-phonon scattering in GeTe, leading to obviously improved thermoelectric properties.
Topics & Concepts
Thermoelectric effectPhononValence bandMaterials scienceScatteringValence (chemistry)Condensed matter physicsConvergence (economics)Thermoelectric materialsPhonon scatteringOptoelectronicsBand gapOpticsPhysicsQuantum mechanicsEconomic growthEconomicsAdvanced Thermoelectric Materials and DevicesThermal Radiation and Cooling TechnologiesThermal properties of materials