Investigation of the thermoelectric properties of the PbTe-SrTe system

Kanishka Biswas; Jiaqing He; Qichun Zhang; Guoyu Wang; Ctirad Uher; Vinayak P. Dravid; Mercouri G. Kanatzidis

Investigation of the thermoelectric properties of the PbTe-SrTe system

Kanishka Biswas, Jiaqing He, Qichun Zhang, Guoyu Wang, Ctirad Uher, Vinayak P. Dravid, Mercouri G. Kanatzidis

Northwestern University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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.

Original language	English
Title of host publication	Thermoelectric Materials 2010 - Growth, Properties, Novel Characterization Methods and Applications
Pages	187-192
Number of pages	6
Publication status	Published - Dec 24 2010
Event	2010 MRS Spring Meeting - San Francisco, CA, United States Duration: Apr 5 2010 → Apr 9 2010

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1267
ISSN (Print)	0272-9172

Other

Other	2010 MRS Spring Meeting
Country	United States
City	San Francisco, CA
Period	4/5/10 → 4/9/10

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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Investigation of the thermoelectric properties of the PbTe-SrTe system. / Biswas, Kanishka; He, Jiaqing; Zhang, Qichun; Wang, Guoyu; Uher, Ctirad; Dravid, Vinayak P.; Kanatzidis, Mercouri G.

Thermoelectric Materials 2010 - Growth, Properties, Novel Characterization Methods and Applications. 2010. p. 187-192 (Materials Research Society Symposium Proceedings; Vol. 1267).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Biswas, K, He, J, Zhang, Q, Wang, G, Uher, C, Dravid, VP & Kanatzidis, MG 2010, Investigation of the thermoelectric properties of the PbTe-SrTe system. in Thermoelectric Materials 2010 - Growth, Properties, Novel Characterization Methods and Applications. Materials Research Society Symposium Proceedings, vol. 1267, pp. 187-192, 2010 MRS Spring Meeting, San Francisco, CA, United States, 4/5/10.

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abstract = "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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AU - Biswas, Kanishka

AU - He, Jiaqing

AU - Zhang, Qichun

AU - Wang, Guoyu

AU - Uher, Ctirad

AU - Dravid, Vinayak P.

AU - Kanatzidis, Mercouri G.

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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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