Fig. 4From: Effective Light Absorption Using the Double-sided Pyramid Gratings for Thin-Film Silicon Solar CellContour maps of the photon absorption distribution in different parts for FPG structure. (a) The total photon absorption A. (b) The photon absorption of the front surface gratings AF. (c) The photon absorption of CS part ASi. (The dotted line in the illustration represents the absorption of BCS)Back to article page