GaSb doping facilitates conduction band convergence and improves thermoelectric performance in n-type PbS
Zixuan Chen, Hong‐Hua Cui, Shiqiang Hao, Yukun Liu, Hui Liu, Jing Zhou, Yan Yu, Qingyu Yan, Christopher Wolverton, Vinayak P. Dravid, Zhong‐Zhen Luo, Zhigang Zou, Mercouri G. Kanatzidis
Abstract
We improve n-type lead chalcogenides by adding GaSb to reduce lattice thermal conductivity and achieve conduction band convergence. This significantly enhances the thermoelectric performance of n-type PbS, making it comparable to its p-type counterpart.
Topics & Concepts
Thermoelectric effectThermal conductionDopingConduction bandMaterials scienceOptoelectronicsThermal conductivityConvergence (economics)Thermoelectric materialsCondensed matter physicsConductivityLattice (music)ChemistryPhysicsComposite materialElectronThermodynamicsQuantum mechanicsPhysical chemistryEconomicsEconomic growthAcousticsAdvanced Thermoelectric Materials and DevicesChalcogenide Semiconductor Thin FilmsThermal Radiation and Cooling Technologies