Thermoelectric efficiency at maximum power in a quantum dotM. Esposito1, 2, K. Lindenberg1 and C. Van den Broeck3
1 Department of Chemistry and Biochemistry and Institute for Nonlinear Science, University of California San Diego, La Jolla, CA 92093-0340, USA
2 Center for Nonlinear Phenomena and Complex Systems, Université Libre de Bruxelles - CP 231, Campus Plaine, B-1050 Brussels, Belgium, EU
3 Hasselt University - B-3590 Diepenbeek, Belgium, EU
received 16 January 2009; accepted in final form 2 March 2009; published March 2009
published online 7 April 2009
We identify the operational conditions for maximum power of a nanothermoelectric engine consisting of a single quantum level embedded between two leads at different temperatures and chemical potentials. The corresponding thermodynamic efficiency agrees with the Curzon-Ahlborn expression up to quadratic terms in the gradients, supporting the thesis of universality beyond linear response.
05.70.Ln - Nonequilibrium and irreversible thermodynamics.
05.70.-a - Thermodynamics.
05.40.-a - Fluctuation phenomena, random processes, noise, and Brownian motion.
© EPLA 2009