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

Materials for extreme conditions

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

10 Citations (Scopus)

Abstract

In the frame of the current research, the p-type Bi2Te3 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 similar 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	unknown
Volume	unknown
DOIs	https://doi.org/10.1155/2014/284634
Publication status	Published - 2014

Keywords

(PB,SN,GE)TE-BASED ALLOYS
SPINODAL DECOMPOSITION
PERFORMANCE

Project and Funding Information

Project ID
info:eu-repo/grantAgreement/EC/FP7/286503/EU/ An innovative environmentally friendly thermo-electric power generation system for automotive and marine applications that is powered by exhaust waste thermal energy to reduce fuel consumption /POWER DRIVER
Funding Info
EC, FP7 PowerDriver Project

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Cite this

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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

Y1 - 2014

N2 - In the frame of the current research, the p-type Bi2Te3 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 similar 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 Bi2Te3 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 similar 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.

KW - (PB,SN,GE)TE-BASED ALLOYS

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KW - PERFORMANCE

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KW - PERFORMANCE

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Investigation of the Microstructural and Thermoelectric Properties of the (GeTe)0.95(Bi2Te3)0.05 Composition for Thermoelectric Power Generation Applications

Abstract

Keywords

Project and Funding Information

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