Three-terminal devices to examine single molecule conductance switching

Abstract

We report electronic transport measurements of single-molecule transistor devices incorporating bipyridyl-dinitro oligophenylene-ethynylene dithiol (BPDN-DT), a molecule known to exhibit conductance switching in other measurement configurations. We observe hysteretic conductance switching in 8% of devices with measurable currents, and find that dependence of the switching properties on gate voltage is rare when compared to other single-molecule transistor devices. This suggests that polaron formation is unlikely to be responsible for switching in these devices. We discuss this and alternative switching mechanisms.

5 pages, 4 figures. Supporting material available upon request

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• Current hysteresis and memory effect in a molecular quantum dot with strong electron-vibron interaction
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Cited by in corpus (7)

• Molecular Transport Junctions: Vibrational Effects
• Green's function methods for single molecule junctions
• Silicon Oxide is a Non-Innocent Surface for Molecular Electronics and Nanoelectronics Studies
• Molecular switch controlled by pulsed bias voltages
• Non-equilibrium electronic structure of interacting single-molecule nanojunctions: vertex corrections and polarization effects for the electron-vibron coupling
• Vibrationally dependent electron-electron interactions in resonant electron transport through single-molecule junctions
• Vibrationally coupled electron transport in single-molecule junctions: The importance of electron-hole pair creation processes