Journal ArticleDOI
Thermal Conductivity and Thermoelectric Power of Germanium‐Silicon Alloys
M. C. Steele,F. D. Rosi +1 more
TLDR
In this paper, a series of germanium-silicon alloys were used for thermoelectric power measurement and it was shown that solid-solution alloying can significantly increase the figure of merit of the thermodynamic properties of these materials.Abstract:
Thermal conductivity measurements have been made on a series of germanium‐silicon alloys. At 300°K for an alloy containing 56 atomic percent Si, the thermal conductivity was found to be six times smaller than the value for pure Ge. Measurements of the thermoelectric power on some alloys are also reported. It is then shown that solid‐solution alloying can significantly increase the figure of merit of thermoelectric materials.read more
Citations
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Recent advances in high-performance bulk thermoelectric materials
Xun Shi,Lidong Chen,Ctirad Uher +2 more
TL;DR: In this paper, the authors summarise the recent progress in bulk thermoelectric (TE) materials and summarize the recently achieved enhancements in the TE performance encompassing the use of electronic band structure engineering, lattice phon...
Journal ArticleDOI
Tellurium as a high-performance elemental thermoelectric.
TL;DR: Here it is shown that a simple elemental semiconductor, tellurium, exhibits a high thermoelectric figure of merit of unity, not only demonstrating the concept but also filling up the high performance gap from 300 to 700 K for elemental thermoeLECTrics.
Journal ArticleDOI
Advances in thermoelectrics
TL;DR: In this article, a thermoelectric generator is used to directly convert heat into electricity, which holds great promise for tackling the ever-increasing energy sustainability issue in the future.
Journal ArticleDOI
The maximum possible conversion efficiency of silicon‐germanium thermoelectric generators
Glen A. Slack,Moayyed A. Hussain +1 more
TL;DR: In this paper, a model employing one valence band and two conduction bands has been used and detailed calculations for the efficiency of a thermoelectric generator made from a 70% Si-30% Ge alloy have been made over the temperature range from 300 to 1300 K. The utility/futility of GaP additions and grain boundary scattering as methods to increase the efficiency is discussed.
Journal ArticleDOI
The Thermoelectric Figure of Merit and its Relation to Thermoelectric Generators
R. P. Chasmar,R. Stratton +1 more
TL;DR: In this paper, the expression for the figure of merit of a semi-conductor of given carrier mobility and lattice thermal conductivity expressed in terms of generalized Fermi-Dirae functions has been numerically evaluated for various scattering indices.
References
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Journal ArticleDOI
Seebeck Effect in Silicon
Theodore H. Geballe,G. W. Hull +1 more
TL;DR: The Seebeck effect has been measured from liquid hydrogen temperatures into the intrinsic range for a series of single-crystal silicon samples in which varying concentrations of donor and acceptor atoms have been incorporated as discussed by the authors.
Journal ArticleDOI
Seebeck Effect in Germanium
Theodore H. Geballe,G. W. Hull +1 more
TL;DR: In this article, an apparatus for making measurements of the Seebeck effect between 20 and 375 K was described and the temperature dependence of this discrepancy and its dependence upon concentration of added atoms were given.
Journal ArticleDOI
Principles of Zone-Melting
TL;DR: In this paper, the authors examined the consequences of zone-melting with respect to the solute distribution in the ingot, with particular reference to purification and prevention of segregation.
Journal ArticleDOI
Thermoelectric Power of Germanium below Room Temperature
TL;DR: The thermoelectric power of germanium single crystals has been measured in the temperature range 10 to 300\ifmmode^\circ\else\text degree\fi{}K $N$-type samples of various impurity content have been investigated.