Annealing Effects of Sputtered Cu<sub>2</sub>O Nanocolumns on ZnO-Coated Glass Substrate for Solar Cell Applications

<table>Top-view and cross-sectional FESEM images of microstructures of Cu<sub>2</sub>O films following annealing at 300, 400, and 500°C.</table>

Journal of Nanomaterials

Figure 1: Annealing Effects of Sputtered Cu<sub>2</sub>O Nanocolumns on ZnO-Coated Glass Substrate for Solar Cell Applications 