Wet-Chemical Surface Texturing of Sputter-Deposited ZnO:Al Films as Front Electrode for Thin-Film Silicon Solar Cells

Figure 8

Angular resolved scattering (ARS) of transmission into air derived from AFM measurements for two-step textured AZO films using (a) 1% HF etching for 20 s and then 0.5% HCl etching from 0 to 40 s and (b) 0.5% HCl etching for 20 s and then 1% HF etching from 0 to 40 s.

(a)

(b)