Journal
SCRIPTA MATERIALIA
Volume 111, Issue -, Pages 3-9Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2015.07.045
Keywords
Thermoelectric; Power factor; Figure of merit; (PF)(eng); (ZT)(eng)
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Funding
- Solid State Solar-Thermal Energy Conversion Center (S3TEC), an Energy Frontier Research Center - United States Department of Energy, Office of Science, Office of Basic Energy Science [DE-SC0001299/DE-FG02-09ER46577]
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The figure of merit (ZT) has been used for more than half a century to guide the research of thermoelectric materials. In this perspective viewpoint, we emphasize that the power factor (PF) is more important than the thermal conductivity for thermoelectric power generation for a given ZT. We also propose the newly defined engineering parameters (ZT)(eng) and (PF)(eng) are the more practical indicators to show the temperature dependent efficiency and output power, as compared with conventional ZT and PF. (c) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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