Journal
NANOTECHNOLOGY
Volume 16, Issue 5, Pages S254-S260Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/16/5/022
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The thermoelectric performance of short oligonucleotides connected in between metallic contacts at different temperatures is theoretically studied on the basis of a model Hamiltonian. The obtained analytical expressions reveal the existence of important resonance effects leading to a significant enhancement of both the electrical conductance and thermoelectric power in the case of trimer codons. On the other hand, dimerization effects lead to a conductance degradation accompanied by a slight thermopower enhancement in the case of dinucleotides. The potential of metal-nucleobase-metal junctions for thermoelectric applications is discussed by considering different design parameters, including the Fermi level position and the molecule-lead coupling strength value.
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