Figure 2. SEM images of (a) as-grown ZnO nanowires and tetrafluoromethane plasma treated nanowires with bias voltages of (b) 100, (c) 200, and (d) 300 V. The insets show corresponding high magnification SEM images [15]

From

Review of Recent Advances of ZnO Nanowires Based Sensors

Ahmed M. Nahhas

American Journal of Nanomaterials. 2020, 8(1), 18-31 doi:10.12691/ajn-8-1-3