Figure 6From: AAO-assisted synthesis of highly ordered, large-scale TiO2 nanowire arrays via sputtering and atomic layer deposition SEM images of the transferred TiO 2 nanowires. The (a, b) top and (c, d) cross-sectional views of 400-nm-high free-standing TiO2 nanowire arrays with a diameter of 66.8 nm.Back to article page