Electron transfer dynamics of bistable single-molecule junctions

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We present transport measurements of single-molecule junctions bridged by a molecule with three benzene rings connected by two double bonds and with thiol end-groups that allow chemical binding to gold electrodes. The I-V curves show switching behavior between two distinct states. By statistical analysis of the switching events, we show that a 300 meV mode mediates the transition between the two states. We propose that breaking and reformation of a S-H bond in the contact zone between molecule and electrode explains the observed bistability.
Original languageEnglish
JournalNano Letters
Issue number10
Pages (from-to)2184-2190
Number of pages6
Publication statusPublished - 2006

ID: 1089018