Journal ArticleDOI
The magneto-Peltier-Seebeck figure of merit of Te-doped Bi95Sb5 at 80 K
C B Thomas,H J Goldsmid +1 more
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TLDR
In this paper, the Seebeck coefficient, thermal conductivity and electrical conductivity of Bi95Sb5 doped with various amounts of Te have been measured at 80 K, using samples that were oriented so as to yield the highest thermoelectric figure of merit.Abstract:
The Seebeck coefficient, thermal conductivity and electrical conductivity of crystals of Bi95Sb5 doped with various amounts of Te have been measured at 80 K, using samples that were oriented so as to yield the highest thermoelectric figure of merit. A dimensionless figure of merit of 058 has been observed for a crystal doped with nominally 0002 at.% Te in a magnetic field of 04 T, this being significantly higher than the best value that was found for an intrinsic crystal. From the change of thermal conductivity with magnetic field it has been possible to estimate a value of 2.8 W m−1 K−1 for the lattice conductivity. A rather low Lorenz number is attributed to inelastic scattering of the electrons.read more
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Elastic wave propagation in Bi1⋅60Sb0⋅40Te3 and Bi2Te3
TL;DR: In this article, the six independent elastic constants of the monocrystalline, pseudo-binary alloy Bi1·60Sb0·40Te3 have been measured by the ultrasonic pulse-echo technique.
Journal ArticleDOI
Thermoelectric properties of p-type Pb-doped Bi85Sb15−xPbx alloys at cryogenic temperatures
TL;DR: In this paper, the effect of the Pb on the thermoelectric propertied of Bi-Sb alloy with different Pb-content was investigated, and the results showed that all the P-doped alloys are p-type thermoeðric materials in the whole measurement temperature range.
Journal ArticleDOI
Low-temperature thermoelectric properties of Bi85Sb15−xNbx alloys prepared by high-press sintering
TL;DR: In this article, the authors investigated the thermal and electrical properties of Bi 85 Sb 15− x Nb x (x = 0, 0.5, 1, 2, 3) and Nb doping.
Journal ArticleDOI
Improved Thermoelectric Properties of p-Type Bismuth Antimony-Based Alloys Prepared by Spark Plasma Sintering
TL;DR: In this paper, the effect of Pb content on the thermoelectric properties was investigated in the temperature range 77-300 K and the maximum power factor reached 1.6 × 10−3 W/mK2 at 190 K, a significant improvement on values reported elsewhere.
Journal ArticleDOI
A Facile Synthesis Method of BiSb Nanoparticles for Thermoelectric Applications
TL;DR: In this paper, the Williamson-Hall method was employed to analyze the lattice stress and micro-strain produced in the BiSb nanoparticles, and the prepared material surface morphology studies were carried out using HR-SEM with EDXA.
References
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Journal ArticleDOI
Temperature Dependence of the Electrical Properties of Bismuth-Antimony Alloys
TL;DR: The electrical resistivity and Hall effect of zone-levelled single crystals of Bi-Sb alloys have been measured in the temperature range from 4.2 to 300 K as discussed by the authors.
Journal ArticleDOI
Effects of a magnetic field on the thermoelectric properties of a bismuth-antimony alloy
R. Wolfe,G. E. Smith +1 more
TL;DR: The thermoeiectric properties of an alloy of 88 at.% bismuth and 12 at.%. antimony in transverse magnetic fields up to 17,000 Ce are reported as discussed by the authors.
Journal ArticleDOI
The Thermomagnetic Figure of Merit and Ettingshausen Cooling in Bi-Sb Alloys
Journal ArticleDOI
Large magneto-Seebeck effect in an extrinsic BiSb alloy
C.B. Thomas,H.J. Goldsmid +1 more
TL;DR: Very large changes of the Seebeck coefficient on the application of a high magnetic field have been observed for extrinsic (Te-doped)Bi 95 Sb 5, and it was found that these changes are compatible with a non-parabolic band structure as mentioned in this paper.