Enhanced thermoelectric performance of p-type Mg<sub>2</sub>Sn single crystals <i>via</i> multi-scale defect engineering
Zhicheng Huang, Kei Hayashi, Wataru Saito, Jun Pei, Jing‐Feng Li, Yuzuru Miyazaki
Abstract
Multi-scale defects in Li-doped Mg 2 Sn single crystals effectively reduce thermal conductivity. The highest dimensionless figure-of-merit zT among p-type Mg 2 Sn is achieved ( zT ∼ 0.38 at 700 K).
Topics & Concepts
Materials scienceThermoelectric effectFigure of meritDimensionless quantityThermal conductivityDopingThermoelectric materialsSingle crystalScale (ratio)Type (biology)Condensed matter physicsAnalytical Chemistry (journal)CrystallographyOptoelectronicsComposite materialChemistryThermodynamicsPhysicsGeologyChromatographyQuantum mechanicsPaleontologyAdvanced Thermoelectric Materials and DevicesThermal properties of materialsThermal Expansion and Ionic Conductivity