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Thermoelectric Power Factor Calculator for Superlattices

By Terence Musho1, Greg Walker2

1. West Virginia University 2. Vanderbilt University

Quantum Simulation of the Seebeck Coefficient and Electrical Conductivity in 1D Superlattice Structures using Non-Equilibrium Green's Functions

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Version 1.2 - published on 29 Jun 2009

doi:10.4231/D35Q4RK7J cite this

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    Iterating Density of States Plot

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Abstract

Using ballistic NEGF, the fortran code calculates the Seebeck coefficient and electrical conductivity from IV characteristics on a three-layer superlattice (film) structure. A temperature difference is imposed on the device, which produces a current (Seebeck effect). A bias is applied such that the net current in the device is zero. This applied bias is the Seebeck voltage. The slope of the IV curve at the Seebeck voltage is the electrical conductivity.

Credits

Greg Walker - Vanderbilt University

Anuradha Bulusu - Purdue University

References

Publications

A. Bulusu and D. G. Walker, `` Quantum Modeling of Thermoelectric Properties of Si/Ge/Si Superlattices,'' accepted for publication, IEEE Transactions on Electron Devices, Vol. 55, No. 1, pp. 423--429, January, 2008.

A. Bulusu and D.G. Walker, ``Quantum modeling of thermoelectric performance of strained Si/Ge/Si superlattices using the nonequilibrium Green's function method,'' Journal of Applied Physics, Vol. 102, No. 7, October 2007, 073713.

Cite this work

Researchers should cite this work as follows:

  • Terence Musho; Greg Walker (2009), "Thermoelectric Power Factor Calculator for Superlattices," http://nanohub.org/resources/slpf. (DOI: 10.4231/D35Q4RK7J).

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