Journal
JOURNAL OF ELECTRONIC MATERIALS
Volume 38, Issue 7, Pages 1163-1165Publisher
SPRINGER
DOI: 10.1007/s11664-009-0691-9
Keywords
Thermoelectrics; Seebeck coefficient; Quantum dots
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The Seebeck coefficient S is an important performance characteristic of thermoelectric materials. In this paper we establish the fact that quantum dots and single-electron tunneling devices with narrow, well-spaced energy levels and sharp transmission resonances have a Seebeck coefficient independent of material parameters. By employing a delta function for the transmission resonances we arrive at an intrinsic expression for S in terms of the fundamental electronic charge e. We further confirm the validity of our result in the case of a transmission resonance with finite width.
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