Preparation of n-type Bi–Sb–Te thermoelectric material by mechanical alloying

The study of the Bi–Sb–Te ternary phase diagram allowed us to identify a zone in the Te-rich side of the diagram where n-type materials can be obtained. The solid solutions of Bi–Sb–Te were synthesized by mechanical alloying with a 10 : 1 ball to powder weight ratio. Two solid solutions showing n-ty...

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Veröffentlicht in:	Solid state communications 1998-09, Vol.108 (5), p.285-288
Hauptverfasser:	Martin-Lopez, R., Lenoir, B., Dauscher, A., Scherrer, H., Scherrer, S.
Format:	Artikel
Sprache:	eng
Schlagworte:	A. semiconductors Cross-disciplinary physics: materials science rheology Exact sciences and technology Materials science Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Phase diagrams of other materials Physics
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Zusammenfassung:	The study of the Bi–Sb–Te ternary phase diagram allowed us to identify a zone in the Te-rich side of the diagram where n-type materials can be obtained. The solid solutions of Bi–Sb–Te were synthesized by mechanical alloying with a 10 : 1 ball to powder weight ratio. Two solid solutions showing n-type conductivity were found. They exhibit very promising carrier concentration values for thermoelectric applications.
ISSN:	0038-1098 1879-2766
DOI:	10.1016/S0038-1098(98)00370-6