Journal ArticleDOI
Thermoelectric figure of merit of quantum wire superlattices
David Broido,T. L. Reinecke +1 more
TLDR
In this article, the effects of tunneling through the barriers due to finite potential offsets and of the thermal currents through the barrier layers are shown to be essential to describe properly the thermoelectric figure of merit of realistic quantum wire superlattices.Abstract:
The electrical conductivity, the thermoelectric power, and the electrical contribution to the thermal conductivity of quantum wire superlattices have been studied. The effects of tunneling through the barriers due to finite potential off‐sets and of the thermal currents through the barrier layers are shown to be essential to describe properly the thermoelectric figure of merit of realistic quantum wire superlattices. The figure of merit exhibits a maximum as a function of superlattice period which, for large barrier off‐sets, is found to be substantially enhanced over that for the bulk material and also larger than that for quantum well superlattices.read more
Citations
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Journal ArticleDOI
Exfoliation and characterization of bismuth telluride atomic quintuples and quasi-two-dimensional crystals.
TL;DR: A method for "graphene-inspired" exfoliation of crystalline bismuth telluride films with a thickness of a few atoms is described, paving the way for producing stacks of crystallines bism Ruth Telluride quantum wells with the strong spatial confinement of charge carriers and acoustic phonons, beneficial for thermoelectric devices.
Journal ArticleDOI
Synthesis and optical properties of tetrapod-like zinc oxide nanorods
TL;DR: In this article, a tetrapod-like zinc oxide (T-ZnO) nanorod was produced in bulk quantity by oxidation of Zn powders by a vapor-solid (VS) mechanism.
Journal ArticleDOI
Synthesis and optical properties of gallium arsenide nanowires
TL;DR: In this article, the results of field-emission scanning electron microscopy and TEM investigations showed that the GaAs nanowires are produced in >90% yield, are single crystals with 〈111〉 growth axes, and have diameters varying from three to tens of nanometers.
Journal ArticleDOI
Electrodeposition of Ordered Bi2Te3 Nanowire Arrays
Amy L. Prieto,Melissa S. Sander,Marisol Martín-González,Ronald Gronsky,Timothy D. Sands,Angelica M. Stacy +5 more
TL;DR: Porous alumina is a good choice for a template because the pore diameters are easily adjusted to sizes enabling quantum confinement, and is currently the most efficient thermoelectric material at 25°C, and a good target material for thermoeLECTric nanowires.
Journal ArticleDOI
Size effect in thermoelectric materials
TL;DR: In this article, the size effect in low-dimensional thermoelectric materials is reviewed, including the quantum confinement effect on carriers, and the effect of phonon confinement and interface scattering on lattice thermal conductivity.
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