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Control of electron transport through Fano resonances in molecular wires.

Research output: Contribution to journalJournal article

Published

Journal publication date8/11/2006
JournalPhysical Review B
Journal number19
Volume74
Pages193306
Original languageEnglish

Abstract

Using a first principles approach, we study the electron transport properties of two molecules of length 2.5 nm, which are the building blocks for a new class of molecular wires containing fluorenone units. We show that the presence of side groups attached to these units leads to Fano resonances close to the Fermi energy. As a consequence electron transport through the molecule can be controlled either by chemically modifying the side group, or by changing the conformation of the side group. This sensitivity, which is not present in Breit-Wigner resonances, opens up new possibilities for novel single-molecule sensors.