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Proceedings Paper

Universal scaling relations for the thermoelectric power factor of nanostructures
Author(s): Jane E. Cornett; Oded Rabin
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Paper Abstract

Computational models for the transport properties of nanostructured thermoelectric materials predicted vast improvements in the thermoelectric power factor (PF) values over bulk due to discretization of the electron density-of-states function as the result of confinement. We have developed a model that bridges bulk and nanostructure PF data. The model is analyzed in the framework of the relaxation time approximation, considering different scattering mechanisms. The model shows that the PF of nanowires in fact falls below the bulk value for most of the experimentally-accessible size range. Under the constant relaxation time approximation, universal scaling relations are obtained for all single-carrier semiconductors.

Paper Details

Date Published: 24 May 2012
PDF: 8 pages
Proc. SPIE 8377, Energy Harvesting and Storage: Materials, Devices, and Applications III, 83770L (24 May 2012); doi: 10.1117/12.919329
Show Author Affiliations
Jane E. Cornett, Univ. of Maryland (United States)
Oded Rabin, Univ. of Maryland (United States)

Published in SPIE Proceedings Vol. 8377:
Energy Harvesting and Storage: Materials, Devices, and Applications III
Nibir K. Dhar; Priyalal S. Wijewarnasuriya; Achyut K. Dutta, Editor(s)

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