Achieving high thermoelectric conversion efficiency in Bi<sub>2</sub>Te<sub>3</sub>-based stepwise legs through bandgap tuning and chemical potential engineering
Rafał Knura, Mykola Maksymuk, Taras Parashchuk, Krzysztof T. Wojciechowski
Abstract
-type stepwise legs reached very high values of 9.3% and 9.0%, respectively, at the relatively small temperature gradient of 375 K. This work suggests carrier concentration and bandgap engineering accompanied by the stepwise leg approach as powerful methods for achieving high energy conversion efficiency in thermoelectric converters.
Topics & Concepts
Thermoelectric effectMaterials scienceEnergy conversion efficiencyBand gapFabricationThermoelectric materialsOptoelectronicsEnergy transformationWork (physics)Range (aeronautics)ThermodynamicsComposite materialPhysicsPathologyMedicineAlternative medicineAdvanced Thermoelectric Materials and DevicesThermal properties of materialsAdvanced Thermodynamics and Statistical Mechanics