High-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.
Allah et al. Nanoscale Research Letters 2013 8:162 doi:10.1186/1556-276X-8-162