Fast Preparation and Low-Temperature Thermoelectric Properties of CoSb3

Polycrystalline p -type CoSb 3 was synthesized by the high-pressure method. The microstructure and temperature-dependent thermoelectric properties of CoSb 3 were investigated. X-ray diffraction and scanning electron microscopy showed that single-phase CoSb 3 with fine grain size could be quickly syn...

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Veröffentlicht in:	Journal of electronic materials 2013, Vol.42 (1), p.109-113
Hauptverfasser:	Su, Taichao, He, Chunyuan, Li, Hongtao, Guo, Xin, Li, Shangsheng, Ma, Hongan, Jia, Xiaopeng
Format:	Artikel
Sprache:	eng
Schlagworte:	Characterization and Evaluation of Materials Chemistry and Materials Science Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Electrical properties of specific thin films Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Electronic transport phenomena in thin films and low-dimensional structures Electronics and Microelectronics Exact sciences and technology Instrumentation Materials Science Optical and Electronic Materials Physical properties of thin films, nonelectronic Physics Solid State Physics Structure and morphology thickness Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties) Thermal stability thermal effects Thermoelectric effects Thin film structure and morphology
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Zusammenfassung:	Polycrystalline p -type CoSb 3 was synthesized by the high-pressure method. The microstructure and temperature-dependent thermoelectric properties of CoSb 3 were investigated. X-ray diffraction and scanning electron microscopy showed that single-phase CoSb 3 with fine grain size could be quickly synthesized under high pressure. The carrier concentrations of CoSb 3 could be tuned by more than a factor of 10 by changing the pressure during synthesis. With the increase of the synthetic pressure, the Seebeck coefficient and resistivity of CoSb 3 increase while the thermal conductivity decreases.
ISSN:	0361-5235 1543-186X
DOI:	10.1007/s11664-012-2259-3