Thermoelectric properties of nanostructured (Pb1·mSn mTe)1-x (PbS)x with Pb and Sb precipitates.

Steven N. Girard; Joseph R. Sootsman; Chia Her Lin; John Androulakis; Mercouri Kanatzidis

Thermoelectric properties of nanostructured (Pb_1·mSn _mTe)_1-x (PbS)_x with Pb and Sb precipitates.

Steven N. Girard, Joseph R. Sootsman, Chia Her Lin, John Androulakis, Mercouri Kanatzidis

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

We report the physical characterization and thermoelectric properties of (Pb_0.95Sn_0.05Te)_0.92(PbS)_0.08 containing excess Pb and Sb prepared using the matrix encapsulation technique. Samples of (Pb_0.95Sn_0.05Te)_0.92(PbS) _0.08: Pb 0.5 - 4 at. % rapidly quenched from the melt show microscale Pb inclusions that increase the thermal conductivity while slightly increasing the power factor, compared to (Pb_0.95Sn_0.05Te) _0.92(PbS)_0.08. Samples of (Pb_0.95Sn _0.05Te)_0.92(PbS)_0.08:Pb 0.5%, Sb 2% prepared using the same technique show microscale Sb and Pb inclusions that upon heating cause rapid PbS and Sb segregation from the Pb Te matrix. This behavior significantly alters the microstructure and degrades the transport properties of the material.

Original language	English (US)
Pages (from-to)	101-106
Number of pages	6
Journal	Materials Research Society Symposium Proceedings
Volume	1044
State	Published - Oct 9 2008

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanical Engineering
Mechanics of Materials

Cite this

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title = "Thermoelectric properties of nanostructured (Pb1·mSn mTe)1-x (PbS)x with Pb and Sb precipitates.",

abstract = "We report the physical characterization and thermoelectric properties of (Pb0.95Sn0.05Te)0.92(PbS)0.08 containing excess Pb and Sb prepared using the matrix encapsulation technique. Samples of (Pb0.95Sn0.05Te)0.92(PbS) 0.08: Pb 0.5 - 4 at. % rapidly quenched from the melt show microscale Pb inclusions that increase the thermal conductivity while slightly increasing the power factor, compared to (Pb0.95Sn0.05Te) 0.92(PbS)0.08. Samples of (Pb0.95Sn 0.05Te)0.92(PbS)0.08:Pb 0.5%, Sb 2% prepared using the same technique show microscale Sb and Pb inclusions that upon heating cause rapid PbS and Sb segregation from the Pb Te matrix. This behavior significantly alters the microstructure and degrades the transport properties of the material.",

author = "Girard, {Steven N.} and Sootsman, {Joseph R.} and Lin, {Chia Her} and John Androulakis and Mercouri Kanatzidis",

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T1 - Thermoelectric properties of nanostructured (Pb1·mSn mTe)1-x (PbS)x with Pb and Sb precipitates.

AU - Girard, Steven N.

AU - Sootsman, Joseph R.

AU - Lin, Chia Her

AU - Androulakis, John

AU - Kanatzidis, Mercouri

PY - 2008/10/9

Y1 - 2008/10/9

N2 - We report the physical characterization and thermoelectric properties of (Pb0.95Sn0.05Te)0.92(PbS)0.08 containing excess Pb and Sb prepared using the matrix encapsulation technique. Samples of (Pb0.95Sn0.05Te)0.92(PbS) 0.08: Pb 0.5 - 4 at. % rapidly quenched from the melt show microscale Pb inclusions that increase the thermal conductivity while slightly increasing the power factor, compared to (Pb0.95Sn0.05Te) 0.92(PbS)0.08. Samples of (Pb0.95Sn 0.05Te)0.92(PbS)0.08:Pb 0.5%, Sb 2% prepared using the same technique show microscale Sb and Pb inclusions that upon heating cause rapid PbS and Sb segregation from the Pb Te matrix. This behavior significantly alters the microstructure and degrades the transport properties of the material.

AB - We report the physical characterization and thermoelectric properties of (Pb0.95Sn0.05Te)0.92(PbS)0.08 containing excess Pb and Sb prepared using the matrix encapsulation technique. Samples of (Pb0.95Sn0.05Te)0.92(PbS) 0.08: Pb 0.5 - 4 at. % rapidly quenched from the melt show microscale Pb inclusions that increase the thermal conductivity while slightly increasing the power factor, compared to (Pb0.95Sn0.05Te) 0.92(PbS)0.08. Samples of (Pb0.95Sn 0.05Te)0.92(PbS)0.08:Pb 0.5%, Sb 2% prepared using the same technique show microscale Sb and Pb inclusions that upon heating cause rapid PbS and Sb segregation from the Pb Te matrix. This behavior significantly alters the microstructure and degrades the transport properties of the material.

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Thermoelectric properties of nanostructured (Pb_1·mSn _mTe)_1-x (PbS)_x with Pb and Sb precipitates.

Abstract

ASJC Scopus subject areas

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