Optimizing thermocouple’s ZT through design innovation

Optimizing thermocouple’s ZT through design innovation

Abstract This work demonstrates that in parallel with the one existed at high doping concentration, there also exists an optimal combination of the transport properties of a thermoelectric material at low doping concentration as the curve of the relation between electrical conductivity and doping co...

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Autor principal: Tinggang Zhang
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
Materias:
Medicine
R
Science
Q
Acceso en línea:https://doaj.org/article/630b8d8b8a3a43feabf35d3d00416c4c
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spelling oai:doaj.org-article:630b8d8b8a3a43feabf35d3d00416c4c2021-12-02T17:18:21ZOptimizing thermocouple’s ZT through design innovation10.1038/s41598-021-98562-z2045-2322https://doaj.org/article/630b8d8b8a3a43feabf35d3d00416c4c2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98562-zhttps://doaj.org/toc/2045-2322Abstract This work demonstrates that in parallel with the one existed at high doping concentration, there also exists an optimal combination of the transport properties of a thermoelectric material at low doping concentration as the curve of the relation between electrical conductivity and doping concentration is rigidly shifted toward that direction without disturbing the Seebeck coefficient and the thermal conductivity. Based on this finding, a new thermocouple design that uses low doping legs and high doping semiconductors as the external carrier injectors surrounding the legs is developed. The analytical model developed for the new thermocouple indicated that its efficiency and power output could be more than tripled as compared to those of the original design. A single thermocouple made of Silicon semiconductors was simulated numerically using different sets of input parameters. The results showed that the density of the externally injected carriers played a significant role in enhancing the thermocouple’s efficiency and power output.Tinggang ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Tinggang Zhang
Optimizing thermocouple’s ZT through design innovation
description Abstract This work demonstrates that in parallel with the one existed at high doping concentration, there also exists an optimal combination of the transport properties of a thermoelectric material at low doping concentration as the curve of the relation between electrical conductivity and doping concentration is rigidly shifted toward that direction without disturbing the Seebeck coefficient and the thermal conductivity. Based on this finding, a new thermocouple design that uses low doping legs and high doping semiconductors as the external carrier injectors surrounding the legs is developed. The analytical model developed for the new thermocouple indicated that its efficiency and power output could be more than tripled as compared to those of the original design. A single thermocouple made of Silicon semiconductors was simulated numerically using different sets of input parameters. The results showed that the density of the externally injected carriers played a significant role in enhancing the thermocouple’s efficiency and power output.
format article
author Tinggang Zhang
author_facet Tinggang Zhang
author_sort Tinggang Zhang
title Optimizing thermocouple’s ZT through design innovation
title_short Optimizing thermocouple’s ZT through design innovation
title_full Optimizing thermocouple’s ZT through design innovation
title_fullStr Optimizing thermocouple’s ZT through design innovation
title_full_unstemmed Optimizing thermocouple’s ZT through design innovation
title_sort optimizing thermocouple’s zt through design innovation
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/630b8d8b8a3a43feabf35d3d00416c4c
work_keys_str_mv AT tinggangzhang optimizingthermocouplesztthroughdesigninnovation
_version_ 1718381089095942144

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