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Schematics of the device structure. (a) Cross section of the three-electrode device, with a magnified top view of the cut through the plane shown below. (b) Enlarged central region of the device. The top and bottom gold films serve as the drain and source electrodes, respectively. (c) SEM picture of the nanopore.
curves of a three-electrode octanethiol SAM device for (a) and (b) .
vs curves for (a) and (b) . The ranges of are different in (a) and (b). The absolute value of the derivative of with respect to for is shown in the inset of (a).
Energy-potential diagrams of the gold-SAM-gold system for (a) and are set to . (b) is set to , and a negative is applied to the drain electrode. (c) is set at , and then is scanned toward positive potentials. (d) is set at , and then scanned toward negative potentials.
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