Journal
JOURNAL OF APPLIED PHYSICS
Volume 113, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4803145
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Funding
- Solid State Solar-Thermal Energy Conversion Center (S3 TEC), an Energy Frontier Research Center
- US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001299/DE-FG02-09ER46577]
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We investigate the thermoelectric properties of electron and hole doped PtSb2. Our results show that for doping of 0.04 holes per unit cell (1.5 x 10(20) cm(-3)) PtSb2 shows a high Seebeck coefficient at room temperature, which can also be achieved at other temperatures by controlling the carrier concentration (both electron and hole). The electrical conductivity becomes temperature independent when the doping exceeds some 0.2 electrons/holes per unit cell. The figure of merit at 800 K in electron and hole doped PtSb2 is comparatively low at 0.13 and 0.21, respectively, but may increase significantly with As alloying due to the likely opening of a band gap and reduction of the lattice thermal conductivity. (C) 2013 AIP Publishing LLC.
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