Research Article

Improving Crystalline Silicon Solar Cell Efficiency Using Graded-Refractive-Index SiON/ZnO Nanostructures

Figure 1

Schematic device structures of SC-A (with SiON/ZnO NT arrays), SC-B (with ZnO NT arrays), SC-C (with ZnO NW arrays), and regular SC (with KOH-etched surface).