Giant thermopower and figure of merit in single-molecule devices

Finch, C. M. and Garcia-Suarez, V. M. and Lambert, Colin (2009) Giant thermopower and figure of merit in single-molecule devices. Physical review B, 79 (3). -. ISSN 1098-0121

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Abstract

We present a study of the thermopower S and the dimensionless figure of merit ZT in molecules sandwiched between gold electrodes. We show that for molecules with side groups, the shape of the transmission coefficient can be dramatically modified by Fano resonances near the Fermi energy, which can be tuned to produce huge increases in S and ZT. This shows that molecules exhibiting Fano resonances have a high efficiency of thermoelectric cooling which is not present for conventional ungated molecules with only delocalized states along their backbone.

Item Type: Journal Article
Journal or Publication Title: Physical review B
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 57884
Deposited By: ep_importer_pure
Deposited On: 28 Aug 2012 14:23
Refereed?: Yes
Published?: Published
Last Modified: 19 Feb 2020 08:10
URI: https://eprints.lancs.ac.uk/id/eprint/57884

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