Importance of high power factor in thermoelectric materials for power generation application: A perspective

Importance of high power factor in thermoelectric materials for power generation application: A perspective

[Display omitted] 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 gi...

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Veröffentlicht in:Scripta materialia 2016-01, Vol.111 (C), p.3-9
Hauptverfasser: Liu, Weishu, Kim, Hee Seok, Jie, Qing, Ren, Zhifeng
Format: Artikel
Sprache:eng
Schlagworte:
(PF)eng
(ZT)eng
Figure of merit
Heat transfer
Indicators
Power factor
Power generation
Thermal conductivity
Thermoelectric
Thermoelectric materials
Thermoelectric power generation
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Zusammenfassung:[Display omitted] 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.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2015.07.045