Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 2, Issue 41, Pages 17302-17306Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta04462b
Keywords
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Funding
- National Nature Science Foundation of China [51172121]
- National Basic Research Program of China [2013CB632503]
- Revolutionary Materials for Solid State Energy Conversion, an Energy Frontier Research Center - US Department of Energy, Office of Science, and Office of Basic Energy Sciences [DE-SC0001054]
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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 mu V 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 Wm(-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.
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