Results 171 to 180 of about 2,945 (216)

THE BISMUTH TELLURIDE-BISMUTH SELENIDE SYSTEM

1966
Abstract : These data sheets present a compilation of a wide range of electronic properties for the bismuth telluride-bismuth selenide system. Electrical properties include conductivity, dielectric constant, Hall coefficient, and mobility. Emission data were broken down into the varied electron and photon emissions which result from application of ...
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The Improvement of a Specific Material – Bismuth Telluride

2009
This chapter outlines the way in which the properties of the most important group of thermoelectric materials, those based on bismuth telluride, have improved with time. The properties of pure bismuth telluride are presented with attention being drawn to the anisotropy of the transport parameters.
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Intercalation of copper into bismuth telluride

Journal of Materials Science, 1992
The intercalation and leaching of copper into and out of bismuth telluride was investigated using aqueous and solid state electrochemical methods. It was found that copper intercalates up to a concentration of 3 mg/g bismuth telluride. Copper may also react with bismuth telluride to form copper telluride (Cu2Te).
J. B. Maclachlan, W. H. Kruesi, D. J. Fray   +2 more
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Heat Conduction in Bismuth Telluride

Proceedings of the Physical Society, 1958
The Lorenz number of the semiconductor Bi2Te3 has been evaluated, for the range of partial degeneracy, from data provided by the measurements of electrical conductivity and thermoelectric power. The calculated electronic component of the thermal conductivity, for p-type material, has been found to agree with the experimental results, assuming the ...
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Bismuth tellurides as gold scavengers

2005
Bi-Te melts have potential as Au scavengers in different types of gold deposits. Using phase equilibria, we define ‘melt-(precipitation) windows’ within which the Bi-Te scavenging mechanism can operate. Predicted assemblages correlate well with those in natural samples and can be applied in other cases to explain the distribution of telluride minerals ...
Cristiana L. Ciobanu, Nigel. J. Cook, Allan Pring   +2 more
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The Thermal Conductivity of Bismuth Telluride

Proceedings of the Physical Society. Section B, 1956
Measurements of the thermal conductivity of bismuth telluride have been made in the range of temperature 150°K to 300°K. It has been found that the electronic contribution to the conduction of heat is considerably greater for specimens in which the charge carriers are intrinsically excited than for specimens in which most of the carriers arise from an ...
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Studies on Nanocrystalline Bismuth Telluride

AIP Conference Proceedings, 2010
Nanostructured thermoelectric bismuth telluride powders with various hydrothermal synthesis times were synthesised to give an experimental comprehension on the formation of the nanopowders. Nanoparticles were synthesised at 130 °C for 24 h and 72 h.
Amitava Ghatak, P. K. Giri, D. K. Goswami, A. Perumal, A. Chattopadhyay   +4 more
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Preparation and Characterization of Nanomaterials of Tellurium, Bismuth, and Bismuth Telluride

Bulletin of the Chemical Society of Japan, 2007
Abstract In order to improve the processing and performance of tellurium (Te), bismuth (Bi), and bismuth telluride (dibismuth tritelluride, Bi2Te3), which are valuable thermoelectric materials that operate near room temperature in the bulk state, a nanometer scale synthetic method, in which the starting materials are reduced with NaBH4 ...
Norihisa Watanabe, Naoki Toshima
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Electrical Properties of Bismuth Telluride Doped with Bismuth Iodide

Physica Status Solidi (a), 1989
Electrical conductivity and Hall coefficient of single crystals of Bi2Te3 doped with 3 wt% Bil3 are measured in thetemperature range 100 to 450 K. The concentrations of holes and electrons, their mobilities and activation energies are calculated without using any extrapolated value of temperature variation of conductivity.
S. Biswas, R. Bhattacharya
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The Band Structure of Bismuth Telluride

Journal of the Physical Society of Japan, 1969
Calculations of the band structure of Bi 2 Te 3 are carried out by means of a pseudopotential approach. The pseudopotential used in the calculation is the model potential of Abarenkov, Animalu and Heine. The spin-orbit term is included from the start. The inclusion of the spin-orbit term serves to avoid band overlap throughout the Brillouin zone.
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