Giant thermopower and figure of merit in single-molecule devices

By Christopher M. Finch, V. García-Suárez, Colin J. Lambert. 2008

232 citations recorded by the source corpus.

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.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/e671c3d04d5eaf507ac4fb57976c8abca60d8dfd

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Giulio Casati
2. Keiji Saito
3. Giuliano Benenti
4. Robert S. Whitney

In Statistical and Nonlinear Physics

1. Giulio Casati
2. Keiji Saito
3. Giuliano Benenti
4. Robert S. Whitney

Citations in the corpus

• Fundamental aspects of steady-state conversion of heat to work at the nanoscale (2016, methodology): “This was used to find the thermoelectric response and figure of merit of various molecules between metallic contacts, and thereby show how to engineer the transmission function; for example by adding side groups to the molecule which introduce Fano resonances at the right energy to generate a strong”