Figure 7

J-V curves for our hot-carrier solar cell based on the combined structure of capped nanowires with top nanocones (red), the solar cells based on the nanocones only (pink) and the nanowires only (green), and the planar cell (blue). The inset table summarizes the characteristic parameters, i.e., J sc, V oc, FF, of the four cells. The geometrical parameters are s = 10 nm, h = 1 μm, r = 1 μm, p = 400 nm, and t top = 70 nm.