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

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• 作者：Weishu Liu¹ ; Hee Seok Kim¹ ; Qing Jie ; Zhifeng Ren ; ^{zren@uh.edu" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Thermoelectric ; Power factor ; Figure of merit ; (PF)eng ; (ZT)eng
• 刊名：Scripta Materialia
• 出版年：2016
• 出版时间：15 January 2016
• 年：2016
• 卷：111
• 期：Complete
• 页码：3-9
• 全文大小：2093 K

文摘

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.