TY - GEN
T1 - Investigation of the thermoelectric properties of the PbTe-SrTe system
AU - Biswas, Kanishka
AU - He, Jiaqing
AU - Zhang, Qichun
AU - Wang, Guoyu
AU - Uher, Ctirad
AU - Dravid, Vinayak P.
AU - Kanatzidis, Mercouri G.
PY - 2010/12/24
Y1 - 2010/12/24
N2 - PbTe-based materials are promising for efficient heat energy to electricity conversion. We present studies of the thermoelectric properties of the PbTe-SrTe system. X-ray diffraction patterns reveal that all the samples crystallize in the rock salt structure without noticeable secondary phase. Na2Te doping of the PbTe-SrTe materials resulting in a positive sign Hall coefficient indicating p-type conduction. Lattice thermal conductivity is significantly decreased with the insertion of SrTe in PbTe lattice. The ZT ∼ 1.3 of these materials is derived from their very low thermal conductivities and reasonably high power factor at 800 K.
AB - PbTe-based materials are promising for efficient heat energy to electricity conversion. We present studies of the thermoelectric properties of the PbTe-SrTe system. X-ray diffraction patterns reveal that all the samples crystallize in the rock salt structure without noticeable secondary phase. Na2Te doping of the PbTe-SrTe materials resulting in a positive sign Hall coefficient indicating p-type conduction. Lattice thermal conductivity is significantly decreased with the insertion of SrTe in PbTe lattice. The ZT ∼ 1.3 of these materials is derived from their very low thermal conductivities and reasonably high power factor at 800 K.
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M3 - Conference contribution
AN - SCOPUS:78650386235
SN - 9781605112442
T3 - Materials Research Society Symposium Proceedings
SP - 187
EP - 192
BT - Thermoelectric Materials 2010 - Growth, Properties, Novel Characterization Methods and Applications
T2 - 2010 MRS Spring Meeting
Y2 - 5 April 2010 through 9 April 2010
ER -