Fig. 2. Plots of log current-density versus applied potential for SAMs of TP1 (black squares), TP1-down (red circles) and TP1-up (blue triangles). Values of log|J| at V = 0 are omitted for clarity. Error bars represent 95% confidence intervals. The three traces are hardly distinguishable at negative bias, while, at positive bias, TP1-up deviates from the rest showing opposite asymmetry (J(+1 V) is slightly higher than J(–1 V) for TP1 and TP1-down and opposite for TP1-up).
