Large thermoelectric power factor enhancement observed in InAs nanowires.

Wu, Phillip M; Gooth, Johannes; Zianni, Xanthippi; Svensson, Sofia Fahlvik; Gluschke, Jan Göran; Dick, Kimberly A; Thelander, Claes; Nielsch, Kornelius et al. · Nano Lett · 2013

basic_science · Level V

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Record sourced from PubMed, PMID 23919739.
Also identified by DOI 10.1021/nl401501j.
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Abstract

We report the observation of a thermoelectric power factor in InAs nanowires that exceeds that predicted by a single-band bulk model by up to an order of magnitude at temperatures below about 20 K. We attribute this enhancement effect not to the long-predicted 1D subband effects but to quantum-dot-like states that form in electrostatically nonuniform nanowires as a result of interference between propagating states and 0D resonances.

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