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Three-terminal devices to examine single molecule conductance switching

Z. K. Keane·J. W. Ciszek·J. M. Tour·D. Natelson
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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.

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Z. K. Keane, J. W. Ciszek, J. M. Tour, D. Natelson. 2006-07-14. Three-terminal devices to examine single molecule conductance switching. https://doi.org/10.1021/nl061117%2B

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