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...

Full description

Saved in:

Bibliographic Details
Main Author:	Tinggang Zhang
Format:	article
Language:	EN
Published:	Nature Portfolio 2021
Subjects:	Medicine R Science Q
Online Access:	https://doaj.org/article/630b8d8b8a3a43feabf35d3d00416c4c
Tags:	Add Tag No Tags, Be the first to tag this record!

id	oai:doaj.org-article:630b8d8b8a3a43feabf35d3d00416c4c
record_format	dspace
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

Optimizing thermocouple’s ZT through design innovation

Similar Items