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

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

In the frame of the current research, the p ‐type Bi 2 Te 3 doped (GeTe) 0.95 (Bi 2 Te 3 ) 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...

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Veröffentlicht in:Journal of nanomaterials 2014-01, Vol.2014 (1)
Hauptverfasser: Weintraub, Lior, Davidow, Joseph, Tunbridge, Jonathan, Dixon, Richard, Reece, Michael John, Ning, Huanpo, Agote, Iñigo, Gelbstein, Yaniv
Format: Artikel
Sprache:eng
Schlagworte:
Alloy powders
Consolidation
Electronics
Hot pressing
Microstructure
Nanomaterials
Optimization
Thermoelectricity
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Zusammenfassung:In the frame of the current research, the p ‐type Bi 2 Te 3 doped (GeTe) 0.95 (Bi 2 Te 3 ) 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.
ISSN:1687-4110
1687-4129
DOI:10.1155/2014/284634