Figure 3 : Pulling single-molecule junctions.

From: Single-molecule electrical contacts on silicon electrodes under ambient conditions

Figure 3

(a) Schematic representation of the pulling stage over a blinking event, before the spontaneous junction breakdown occurs. (b) Schematic representation of the pulling stage after the spontaneous junction breakdown occurred. (c) Pulling curves exerted before the junction breakdown (a) showing mechanical resistance confirming the molecular signature of the junction and its stability during the tip retraction. (d) Pulling curves exerted after the spontaneous junction breakdown occurred (b) showing immediate exponential decay without mechanical resistance suggesting the absence of a molecular junction at this stage. The initial set point is 1 nA.