Low vapor pressure solvents for single-molecule junction measurements
Leopold Kim,
Thomas Czyszczon-Burton,
Kenneth Nguyen
et al.
Abstract:Non-polar solvents commonly used in scanning tunneling microscope-based break junction measurements exhibit hazards and relatively low boiling points (b.p.) that limit the scope of solution experiments at elevated temperatures. Here we show that low toxicity, ultra-high b.p. solvents such as bis(2-ethylhexyl) adipate (b.p. = 417°C) and squalane (457°C) can be used to probe molecular junctions at ≥100°C. With these, we extend solvent- and temperature-dependent conductance trends for junction components such as … Show more
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