Achieving high power factor and output power density in p-type half-Heuslers Nb
Name
He-2016-Achieving high power factor and output.pdf
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Author(s)
He, Ran
Kraemer, Daniel
Mao, Jun
Zeng, Lingping
Jie, Qing
Lan, Yucheng
Li, Chunhua
Shuai, Jing
Kim, Hee Seok
Liu, Yuan
Date Issued
November 2016
Journal
Proceedings of the National Academy of Sciences
Publisher
National Academy of Sciences (U.S.)
Citation
He, Ran; Kraemer, Daniel; Mao, Jun; Zeng, Lingping; Jie, Qing; Lan, Yucheng; Li, Chunhua, et al. “Achieving High Power Factor and Output Power Density in p-Type Half-Heuslers Nb1-xTixFeSb.” Proceedings of the National Academy of Sciences 113, no. 48 (November 2016): 13576–13581. © 2016 National Academy of Sciences
Version
Final published version
Abstract
Improvements in thermoelectric material performance over the past two decades have largely been based on decreasing the phonon thermal conductivity. Enhancing the power factor has been less successful in comparison. In this work, a peak power factor of ∼106 μW⋅cm⁻¹⋅K⁻² is achieved by increasing the hot pressing temperature up to 1,373 K in the p-type half-Heusler Nb[subscript 0.95]Ti[subscript 0.05]FeSb. The high power factor subsequently yields a record output power density of ∼22 W⋅cm⁻² based on a single-leg device operating at between 293 K and 868 K. Such a high-output power density can be beneficial for large-scale power generation applications.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1073/pnas.1617663113
