Investigation of the microstructural and thermoelectric properties of the (GeTe)0.95 (Bi2Te3)0.05 composition for thermoelectric power generation applications

Lior Weintraub; Joseph Davidow; Jonathan Tunbridge; Richard Dixon; Michael John Reece; Huanpo Ning; Iñigo Agote; Yaniv Gelbstein

doi:10.1155/2014/284634

Investigation of the microstructural and thermoelectric properties of the (GeTe)_0.95 (Bi₂Te₃)_0.05 composition for thermoelectric power generation applications

Lior Weintraub, Joseph Davidow, Jonathan Tunbridge, Richard Dixon, Michael John Reece, Huanpo Ning, Iñigo Agote, Yaniv Gelbstein

Department of Materials Engineering

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

7 Scopus citations

Abstract

In the frame of the current research, the p -type Bi₂Te ₃ doped (GeTe)_0.95(Bi₂Te₃) _0.05 alloy composed of hot pressed consolidated submicron structured powder was investigated. The influence of the process parameters (i.e., powder particles size and hot pressing conditions) on both reduction of the lattice thermal conductivity and electronic optimization is described in detail. Very high maximal ZT values of up to ∼1.6 were obtained and correlated to the microstructural characteristics. Based on the various involved mechanisms, a potential route for further enhancement of the ZT values of the investigated composition is proposed.

Original language	English
Article number	284634
Journal	Journal of Nanomaterials
Volume	2014
DOIs	https://doi.org/10.1155/2014/284634
State	Published - 18 Feb 2014

ASJC Scopus subject areas

Materials Science (all)

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abstract = "In the frame of the current research, the p -type Bi2Te 3 doped (GeTe)0.95(Bi2Te3) 0.05 alloy composed of hot pressed consolidated submicron structured powder was investigated. The influence of the process parameters (i.e., powder particles size and hot pressing conditions) on both reduction of the lattice thermal conductivity and electronic optimization is described in detail. Very high maximal ZT values of up to ∼1.6 were obtained and correlated to the microstructural characteristics. Based on the various involved mechanisms, a potential route for further enhancement of the ZT values of the investigated composition is proposed.",

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T1 - Investigation of the microstructural and thermoelectric properties of the (GeTe)0.95 (Bi2Te3)0.05 composition for thermoelectric power generation applications

AU - Weintraub, Lior

AU - Davidow, Joseph

AU - Tunbridge, Jonathan

AU - Dixon, Richard

AU - Reece, Michael John

AU - Ning, Huanpo

AU - Agote, Iñigo

AU - Gelbstein, Yaniv

PY - 2014/2/18

Y1 - 2014/2/18

N2 - In the frame of the current research, the p -type Bi2Te 3 doped (GeTe)0.95(Bi2Te3) 0.05 alloy composed of hot pressed consolidated submicron structured powder was investigated. The influence of the process parameters (i.e., powder particles size and hot pressing conditions) on both reduction of the lattice thermal conductivity and electronic optimization is described in detail. Very high maximal ZT values of up to ∼1.6 were obtained and correlated to the microstructural characteristics. Based on the various involved mechanisms, a potential route for further enhancement of the ZT values of the investigated composition is proposed.

AB - In the frame of the current research, the p -type Bi2Te 3 doped (GeTe)0.95(Bi2Te3) 0.05 alloy composed of hot pressed consolidated submicron structured powder was investigated. The influence of the process parameters (i.e., powder particles size and hot pressing conditions) on both reduction of the lattice thermal conductivity and electronic optimization is described in detail. Very high maximal ZT values of up to ∼1.6 were obtained and correlated to the microstructural characteristics. Based on the various involved mechanisms, a potential route for further enhancement of the ZT values of the investigated composition is proposed.

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SN - 1687-4110

VL - 2014

JO - Journal of Nanomaterials

JF - Journal of Nanomaterials

M1 - 284634

ER -

Investigation of the microstructural and thermoelectric properties of the (GeTe)_0.95 (Bi₂Te₃)_0.05 composition for thermoelectric power generation applications

Abstract

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