Thermoelectrics with earth abundant elements: Low thermal conductivity and high thermopower in doped SnS

Qing Tan; Li Dong Zhao; Jing Feng Li; Chao Feng Wu; Tian Ran Wei; Zhi Bo Xing; Mercouri G. Kanatzidis

doi:10.1039/c4ta04462b

Thermoelectrics with earth abundant elements: Low thermal conductivity and high thermopower in doped SnS

Qing Tan, Li Dong Zhao, Jing Feng Li, Chao Feng Wu, Tian Ran Wei, Zhi Bo Xing, Mercouri G. Kanatzidis

Northwestern University

Research output: Contribution to journal › Article

146 Citations (Scopus)

Abstract

The thermoelectric properties of Ag-doped SnS samples synthesized by mechanical alloying followed by spark plasma sintering were studied. We report that SnS possesses a high Seebeck coefficient of >+400 μV K^-1 and Ag doping increases the carrier concentration by more than four orders of magnitude giving significantly improving electrical conductivity. The thermal conductivity falls below 0.5 W m^-1 K^-1 at 873 K and leads to a high ZT of 0.6. The data indicate that earth-abundant and environmentally friendly SnS is a promising candidate for thermoelectric applications despite its relatively wide bandgap of 1.2 eV.

Original language	English
Pages (from-to)	17302-17306
Number of pages	5
Journal	Journal of Materials Chemistry A
Volume	2
Issue number	41
DOIs	https://doi.org/10.1039/c4ta04462b
Publication status	Published - Nov 7 2014

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ASJC Scopus subject areas

Chemistry(all)
Renewable Energy, Sustainability and the Environment
Materials Science(all)

Cite this

Tan, Q., Zhao, L. D., Li, J. F., Wu, C. F., Wei, T. R., Xing, Z. B., & Kanatzidis, M. G. (2014). Thermoelectrics with earth abundant elements: Low thermal conductivity and high thermopower in doped SnS. Journal of Materials Chemistry A, 2(41), 17302-17306. https://doi.org/10.1039/c4ta04462b

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10.1039/c4ta04462b