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

References in corpus (2)

• Inelastic electron tunneling via molecular vibrations in single-molecule transistors
• Kondo resonances and anomalous gate dependence of electronic conduction in single-molecule transistors

Cited by in corpus (2)

• Molecular Transport Junctions: Vibrational Effects
• Molecular switch controlled by pulsed bias voltages