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Evaluation of the Structure and Transport Properties of Nanostructured Antimony Telluride (Sb2Te3)
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
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2014 (English)In: Journal of Electronic Materials, ISSN 0361-5235, E-ISSN 1543-186X, Vol. 43, no 6, 1927-1932 p.Article in journal (Refereed) Published
Abstract [en]

Antimony telluride, (Sb2Te3), and its doped derivatives are considered to be among the best p-type thermoelectric (TE) materials for room temperature (300-400 K) applications. However, it is still desirable to develop rapid and economical routes for large-scale synthesis of Sb2Te3 nanostructures. We report herein a high yield, simple and easily scalable synthetic method for polycrystalline Sb2Te3 nanostructures. Prepared samples were compacted into dense pellets by use of spark plasma sintering. The products were characterized by x-ray diffraction and scanning electron microscopy. To investigate the anisotropic behavior of Sb2Te3 TE transport property measurements were performed along and perpendicular to the direction of compaction. Thermal conductivity, electrical conductivity, and Seebeck coefficient measurement over the temperature range 350-525 K showed that the anisotropy of the material had a large effect on TE performance.

Place, publisher, year, edition, pages
2014. Vol. 43, no 6, 1927-1932 p.
Keyword [en]
Antimony telluride (Sb2Te3), thermoelectrics, synthesis, anisotropy
National Category
Materials Chemistry
URN: urn:nbn:se:su:diva-105894DOI: 10.1007/s11664-013-2911-6ISI: 000336372400067OAI: diva2:733400
Swedish Foundation for Strategic Research


Available from: 2014-07-09 Created: 2014-07-08 Last updated: 2014-07-09Bibliographically approved

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Johnsson, Mats
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