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Title: Enhanced thermoelectric properties of n-type NbCoSn half-Heusler by improving phase purity

Journal Article · · APL Materials
DOI:https://doi.org/10.1063/1.4952994· OSTI ID:1255315
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In this paper, we report the thermoelectric properties of NbCoSn-based n-type half-Heuslers (HHs) that were obtained through arc melting, ball milling, and hot pressing process. With 10% Sb substitution at the Sn site, we obtained enhanced n-type properties with a maximum power factor reaching ~35 μW cm-1 K-2 and figure of merit (ZT) value ~0.6 in NbCoSn0.9Sb0.1. The ZT is doubled compared to the previous report. In addition, the specific power cost ($ W-1) is decreased by ~68% comparing to HfNiSn-based n-type HH because of the elimination of Hf.

Research Organization:
Univ. of Houston, TX (United States); Xihua Univ., Chengdu (China)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation of China (NSFC) (China); Youth Science Innovation Program of Sichuan Province (China); Science and Technology Support Program of Sichuan Province (China); Chunhui Program from Education Ministry of China (China); Xihua Univ. (China)
Contributing Organization:
Chinese Academy of Sciences (CAS), Beijing (China); Robert Bosch LLC, Cambridge, MA (United States)
Grant/Contract Number:
SC0010831; 51372208; 51472207; 51572226; 2015TD0017; 2015GZ0060; Z2014042; SZJJ2013-034; DOE DE-SC0010831
OSTI ID:
1255315
Alternate ID(s):
OSTI ID: 1360094; OSTI ID: 1416460
Journal Information:
APL Materials, Journal Name: APL Materials Vol. 4 Journal Issue: 10; ISSN 2166-532X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 49 works
Citation information provided by
Web of Science

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Cited By (18)

Understanding the asymmetrical thermoelectric performance for discovering promising thermoelectric materials journal June 2019
Improving the Thermoelectric Properties of the Half-Heusler Compound VCoSb by Vanadium Vacancy journal May 2019
Accelerated Screening of Thermoelectric Materials by First-Principles Computations of Electron-Phonon Scattering journal April 2018
Discovery of TaFeSb-based half-Heuslers with high thermoelectric performance journal January 2019
Thermoelectric properties of CuGa 1−x Mn x Te 2 : power factor enhancement by incorporation of magnetic ions journal January 2017
A novel p-type half-Heusler from high-throughput transport and defect calculations journal January 2016
The effect of Sn doping on thermoelectric performance of n-type half-Heusler NbCoSb journal January 2017
Impact of Nb vacancies and p-type doping of the NbCoSn–NbCoSb half-Heusler thermoelectrics journal January 2018
Facile chemical synthesis and enhanced thermoelectric properties of Ag doped SnSe nanocrystals journal January 2017
Low thermal conductivity and promising thermoelectric performance in A x CoSb (A = V, Nb or Ta) half-Heuslers with inherent vacancies journal January 2019
High performance p-type half-Heusler thermoelectric materials journal February 2018
First-principles investigations of orthorhombic-cubic phase transition and its effect on thermoelectric properties in cobalt-based ternary alloys journal November 2019
Thermoelectric power generation: from new materials to devices
  • Tan, Gangjian; Ohta, Michihiro; Kanatzidis, Mercouri G.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 377, Issue 2152 https://doi.org/10.1098/rsta.2018.0450
journal July 2019
Prospective high thermoelectric performance of the heavily p -doped half-Heusler compound CoVSn journal May 2017
Electronic fitness function for screening semiconductors as thermoelectric materials journal November 2017
Hole-doped cobalt-based Heusler phases as prospective high-performance high-temperature thermoelectrics journal December 2017
Ab initio design of new cobalt-based half-Heusler materials for thermoelectric applications journal December 2017
Impact of Interstitial Ni on the Thermoelectric Properties of the Half-Heusler TiNiSn journal March 2018

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36 MATERIALS SCIENCE
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