In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 43, No. 3R ( 2004-03-01), p. 1094-
Abstract:
We have measured the thermal properties of an n-type hot-pressed Bi 1.8 Sb 0.2 Te 3 alloy with a carrier concentration of 3.1×10 19 cm -3 . With the adjustable parameters determined from these experimental data, the dependence of thermal properties on the carrier concentrations is investigated, using the two-band-conduction model with a mixed scattering mechanism and a small fluctuation theory. The maximum dimensionless figures of merit of the alloy in a carrier concentration range of 0.8–3×10 19 cm -3 have values over 0.7 at temperatures between 250 K and 300 K and a minimum thermal conductivity of 1 W/Km. These alloys are comparable to single crystals, showing the possibility that they provide higher thermoelectric performance than the single crystals, since their microstructure can be controlled by hot-press processing.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.43.1094
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2004
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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