Abstract

The conversion of heat to electricity by thermoelectric devices may play a key role in the future for energy production and utilization. However, in order to meet that role, more efficient thermoelectric materials are needed that are suitable for high-temperature applications. We show that the material system AgPb m SbTe 2+ m may be suitable for this purpose. With m = 10 and 18 and doped appropriately, n -type semiconductors can be produced that exhibit a high thermoelectric figure of merit material ZT max of ∼2.2 at 800 kelvin. In the temperature range 600 to 900 kelvin, the AgPb m SbTe 2+ m material is expected to outperform all reported bulk thermoelectrics, thereby earmarking it as a material system for potential use in efficient thermoelectric power generation from heat sources.

Keywords

Thermoelectric materialsThermoelectric effectFigure of meritMaterials scienceThermoelectric generatorEngineering physicsSemiconductorThermoelectric coolingOptoelectronicsSeebeck coefficientDopingElectricity generationElectricityNanotechnologyPower (physics)PhysicsThermodynamics

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Publication Info

Year
2004
Type
article
Volume
303
Issue
5659
Pages
818-821
Citations
2878
Access
Closed

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Kuei Fang Hsu, Sim Loo, Fu Guo et al. (2004). Cubic AgPb <i> <sub>m</sub> </i> SbTe <sub>2+</sub> <i> <sub>m</sub> </i> : Bulk Thermoelectric Materials with High Figure of Merit. Science , 303 (5659) , 818-821. https://doi.org/10.1126/science.1092963

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DOI
10.1126/science.1092963