DNA-based thermoelectric devices: a theoretical prospective



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Maciá Barber, Enrique Alfonso (2007) DNA-based thermoelectric devices: a theoretical prospective. Physical review B, 75 (3). ISSN 1098-0121

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Official URL: http://dx.doi.org/10.1103/PhysRevB.75.035130


The thermoelectric performance of PolyG-PolyC and PolyA-PolyT double-stranded chains connected between organic contacts at different temperatures is theoretically studied on the basis of an effective model Hamiltonian. The obtained analytical expressions reveal the existence of important resonance effects leading to a significant enhancement of the Seebeck coefficient depending on the Fermi level position. High thermoelectric power factors, up to P=(1.5-3)x10^(-3) W m^(-1) K^(-2), are obtained close to the resonance energy. These values suggest that significantly high values of the thermoelectric figure of merit may be attained for synthetic DNA samples at room temperature. The possibility of combining p-type and n-type synthetic DNA chains in the design of a nanoscale Peltier cell is discussed, taking into account both contact and environmental effects.

Item Type:Article
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©2007 The American Physical Society.
I warmly thank E. Artacho, G. Cuniberti, R. Di Felice, R. Gutierrez, D. Porath, S. Roche, E. B. Starikov, and M. Zwolak for sharing useful information. I acknowledge M. V. Hernández for a critical reading of the manuscript. This work has been supported by the Universidad Complutense de Madrid through Project No. PR27/05-14014-BSCH.

Uncontrolled Keywords:Acoustic-phonon modes; Electrical-transport; Biomolecular nanowires; Deoxyribonucleic-acid; Electronic transport; Charge-transport; Lambda-DNA; Conductance; Molecules; Quantum
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:44583
Deposited On:19 Sep 2017 18:33
Last Modified:19 Sep 2017 18:33

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