Figure 4
From: Comparative study of absorption in tilted silicon nanowire arrays for photovoltaics
Ultimate efficiency of vertical nanowire and tilted nanowire arrays as a function of incidence angle θ . The TE polarization results for the tilted nanowire arrays are the average of the light polarized along the x-axis and the y-axis. Likewise, the TM polarization results for the tilted nanowire arrays are the average of the magnetic field along the x-axis and the y-axis. The tilted nanowire arrays consistently perform better than the vertical nanowire arrays for incidence angles under about 60°.