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Thermopower of Bi Nanowire Array Composites.

Published online by Cambridge University Press:  01 February 2011

T.E. Huber,
M.J. Graf,
C.A. Foss Jr and
P. Constant
T.E. Huber
Affiliation:
Laser Research, Howard University, Washington, DC 20059
M.J. Graf
Affiliation:
Department of Physics, Boston College, Chestnut Hill, MA 02467
C.A. Foss Jr
Affiliation:
Department of Chemistry, Georgetown University, Washington, DC 20059.
P. Constant
Affiliation:
Laser Research, Howard University, Washington, DC 20059
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The small effective mass and high mobility of electrons in Bi, make Bi nanowires a promising system for thermoelectric applications. Dense arrays of 20–200 nm diameter Bi nanowires were fabricated by high pressure injection of the melt. Transport properties and Seebeck coefficient were investigated for Bi nanowires with various wire diameters as a function of temperature (1 K < T < 300 K) and magnetic fields (B < 0.6 T). We discuss the problem of the contact resistance of Bi nanowire arrays.

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References

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