Fig. 3
From: Effective Light Absorption Using the Double-sided Pyramid Gratings for Thin-Film Silicon Solar Cell
Optical properties of different silicon pyramid grating structures under the given parameters compared to the BCS of the same thickness (BCS (H = 10 μm), FPG (P1/D1 = 1, H1 = 200 nm), RPG (P2/D2 = 1 or P2/D2 = 10, H2 = 200 nm), DSPG (P1/D1 = 1, P2/D2 = 1 or P2/D2 = 10, H1 = H2 = 200 nm)). (a), (b), and (c) are the total light reflectivity, absorptivity, and transmissivity, respectively