High thermoelectric figure of merit and nanostructuring in bulk p-type Gex(SnyPb1-y)1-xTe alloys following a spinodal decomposition reaction

Yaniv Gelbstein; Boaz Dado; Ohad Ben-Yehuda; Yatir Sadia; Zinovy Dashevsky; Moshe P. Dariel

doi:10.1021/cm902009t

High thermoelectric figure of merit and nanostructuring in bulk p-type Ge_x(Sn_yPb_1-y)_1-xTe alloys following a spinodal decomposition reaction

Yaniv Gelbstein, Boaz Dado, Ohad Ben-Yehuda, Yatir Sadia, Zinovy Dashevsky, Moshe P. Dariel

Department of Materials Engineering

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

70 Scopus citations

Abstract

The use of thermoelectricity for direct energy conversion from thermal to electrical energy has a long-standing history. We report that the complex p-type Ge(Sn,Pb,Te)Te alloys upon suitable alloying with SnTe can be designed to obtain very high ZT values of up to 1.2 because of both optimal electronic transport properties and minimal lattice thermal conductivity. Such alloys follow a spinodal decomposition reaction, leading to an ordered periodic nanostructure that is effective in the scattering of phonons and reduction of the lattice thermal conductivity.

Original language	English
Pages (from-to)	1054-1058
Number of pages	5
Journal	Chemistry of Materials
Volume	22
Issue number	3
DOIs	https://doi.org/10.1021/cm902009t
State	Published - 9 Feb 2010

ASJC Scopus subject areas

Chemistry (all)
Chemical Engineering (all)
Materials Chemistry

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abstract = "The use of thermoelectricity for direct energy conversion from thermal to electrical energy has a long-standing history. We report that the complex p-type Ge(Sn,Pb,Te)Te alloys upon suitable alloying with SnTe can be designed to obtain very high ZT values of up to 1.2 because of both optimal electronic transport properties and minimal lattice thermal conductivity. Such alloys follow a spinodal decomposition reaction, leading to an ordered periodic nanostructure that is effective in the scattering of phonons and reduction of the lattice thermal conductivity.",

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AU - Gelbstein, Yaniv

AU - Dado, Boaz

AU - Ben-Yehuda, Ohad

AU - Sadia, Yatir

AU - Dashevsky, Zinovy

AU - Dariel, Moshe P.

PY - 2010/2/9

Y1 - 2010/2/9

N2 - The use of thermoelectricity for direct energy conversion from thermal to electrical energy has a long-standing history. We report that the complex p-type Ge(Sn,Pb,Te)Te alloys upon suitable alloying with SnTe can be designed to obtain very high ZT values of up to 1.2 because of both optimal electronic transport properties and minimal lattice thermal conductivity. Such alloys follow a spinodal decomposition reaction, leading to an ordered periodic nanostructure that is effective in the scattering of phonons and reduction of the lattice thermal conductivity.

AB - The use of thermoelectricity for direct energy conversion from thermal to electrical energy has a long-standing history. We report that the complex p-type Ge(Sn,Pb,Te)Te alloys upon suitable alloying with SnTe can be designed to obtain very high ZT values of up to 1.2 because of both optimal electronic transport properties and minimal lattice thermal conductivity. Such alloys follow a spinodal decomposition reaction, leading to an ordered periodic nanostructure that is effective in the scattering of phonons and reduction of the lattice thermal conductivity.

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High thermoelectric figure of merit and nanostructuring in bulk p-type Ge_x(Sn_yPb_1-y)_1-xTe alloys following a spinodal decomposition reaction

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