DNA-based thermoelectric devices: a theoretical prospective
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 e...
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2007 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/52103 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/52103 |
| Access Level: | acceso abierto |
| Palabra clave: | 538.9 Acoustic-phonon modes Electrical-transport Biomolecular nanowires Deoxyribonucleic-acid Electronic transport Charge-transport Lambda-DNA Conductance Molecules Quantum Física de materiales Física del estado sólido 2211 Física del Estado Sólido |
| Sumario: | 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. |
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