Figure 5

I–V characteristics for 6 ML (left) and 8 ML (right). The black and red solid lines indicate dark current and current under illumination, respectively. The dashed blue line is calculated gain from two solid line curves.

I–V characteristics for 6 ML (left) and 8 ML (right). The black and red solid lines indicate dark current and current under illumination, respectively. The dashed blue line is calculated gain from two solid line curves.