Ultra-low lattice thermal conductivity driven high thermoelectric figure of merit in Sb/W co-doped GeTe
Khasim Saheb Bayikadi, Safdar Imam, Wei-Shen Tee, S. Kavirajan, Chun-Lin Chang, Amr Sabbah, Fang‐Yu Fu, Ting‐Ran Liu, Ching‐Yu Chiang, D. K. Shukla, Chien‐Ting Wu, Li–Chyong Chen, M. Y. Chou, Kuei‐Hsien Chen, R. Sankar
Abstract
Phonon scattering processes to κ lat of Ge 0.85 Sb 0.1 W 0.05 Te: Umklapp, boundary, point-defect, stacking faults, resonant scattering, nanoprecipitates & microstructural effects. (b) κ lat reduction (inset: ZT enhancement).
Topics & Concepts
Figure of meritMaterials scienceThermoelectric effectThermal conductivityDopingCondensed matter physicsThermoelectric materialsLattice (music)OptoelectronicsComposite materialPhysicsThermodynamicsAcousticsAdvanced Thermoelectric Materials and DevicesPhase-change materials and chalcogenidesChalcogenide Semiconductor Thin Films