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Structure and thermoelectric properties of Cs-Bi-Te alloys fabricated by different routes of reduction of oxide reagents

Abstract

Cesium-bismuth-telluride polycrystalline materials were fabricated using a cost-effective method based on a reduction of oxide reagents, leading to a production of a material with good thermoelectric properties. Several samples with various initial stoichiometry were prepared by melting of oxide powders at 1050 °C, quenching, milling to powders and then reducing in pure hydrogen at 400 °C. Another concept was to obtain the CsBi4Te6 material without a melting stage. Composition of the samples was analyzed by the XRD and EDX methods. The sample with 96% of CsBi4Te6 phase was obtained in a way of reduction of oxide reagents. Thermoelectric properties of fabricated samples were also investigated.

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Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
SOLID STATE SCIENCES no. 73, pages 41 - 50,
ISSN: 1293-2558
Language:
English
Publication year:
2017
Bibliographic description:
Gostkowska N., Miruszewski T., Trawiński B. J., Bochentyn B., Kusz B.: Structure and thermoelectric properties of Cs-Bi-Te alloys fabricated by different routes of reduction of oxide reagents// SOLID STATE SCIENCES. -Vol. 73, (2017), s.41-50
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.solidstatesciences.2017.07.016
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