Figure 1From: Modification of the optical and structural properties of ZnO nanowires by low-energy Ar+ ion sputteringHigh-resolution SEM images. Showing the morphology of unirradiated ZnO NWs (a, b) and irradiated NWs with fluences of 1.5 × 1016 cm−2 (c, d) and 1017 cm−2 (e, f). Note the disappearance of the thinner NWs as the irradiation fluence increases.Back to article page