Figure 4From: Modification of the optical and structural properties of ZnO nanowires by low-energy Ar+ ion sputteringCTEM images showing two representative ZnO NWs (a, b). Extracted from unirradiated and irradiated (fluence = 1017 cm−2) areas, respectively. The insets of both figures show the nanowire tip details; note that the irradiated NW tip is faceted as a consequence of the strike by Ar+ energetic particles.Back to article page