Electric-Field Control of Interfering Transport Pathways in a Single-Molecule Anthraquinone Transistor.

Koole, Max; Thijssen, Jos M; Valkenier, Hennie; Hummelen, Jan C; van der Zant, Herre S J · Nano Lett · 2015

basic_science · Level V

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Abstract

It is understood that molecular conjugation plays an important role in charge transport through single-molecule junctions. Here, we investigate electron transport through an anthraquinone based single-molecule three-terminal device. With the use of an electric-field induced by a gate electrode, the molecule is reduced resulting into a 10-fold increase in the off-resonant differential conductance. Theoretical calculations link the change in differential conductance to a reduction-induced change in conjugation, thereby lifting destructive interference of transport pathways.

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