702094.fig.002a
(a) Series 
702094.fig.002b
(b) 2 × 3
702094.fig.002c
(c) 3 × 2
702094.fig.002d
(d) Parallel
Figure 2: Four types of dot arrangement of an array consisting of six nanodots sandwiched by the source and drain electrode. (a) Series, (b) 2 × 3, (c) 3 × 2, and (d) parallel.