Colossal thermoelectric enhancement in Cu<sub>2+x</sub>Zn<sub>1−x</sub>SnS<sub>4</sub> solid solution by local disordering of crystal lattice and multi-scale defect engineering
Qinghui Jiang, Haixue Yan, Yuanhua Lin, Yang Shen, Junyou Yang, Michael J. Reece
Abstract
Synergistic effects of Cu self-doping and hot forging of Cu<italic>2</italic>ZnSnS<sub>4</sub> realize the decoupling of thermal and electric transport. And hot forging produces defects on different length scales and effectively optimize the electric and thermal conductivities.
Topics & Concepts
Thermoelectric effectMaterials scienceDecoupling (probability)Thermoelectric materialsThermalLattice (music)Crystal structureSolid solutionCondensed matter physicsDopingForgingCrystallographyMetallurgyThermal conductivityThermodynamicsOptoelectronicsComposite materialChemistryPhysicsEngineeringAcousticsControl engineeringAdvanced Thermoelectric Materials and DevicesChalcogenide Semiconductor Thin FilmsTransition Metal Oxide Nanomaterials