Figure 3
From: Broadband solar absorption enhancement via periodic nanostructuring of electrodes

Optical properties of the nanostructured CQD solar cell.
FDTD simulations of the total absorption in the CQD solar cell using the model shown in Figure 2e (a) without top metal contact and (b) with top metal contact. Total absorption measurements (c) without top metal contact and (d) with top metal contact. The inset of c shows a photograph of the structured and planar device viewed from the glass-side of the substrate.