Figure 5. UV-vis transmittance plots of untreated versus N2 plasma treated (a) TiO2 and (b) ZnO nanowires films; Tauc plots comparing the untreated and N2 plasma treated structures of (c) TiO2 and (d) ZnO [54]

From

Review of ZnO Nano Devices

H. Murad, M. Abdulrahman, Y. Saleh, Ahmed M. Nahhas

American Journal of Nanomaterials. 2022, 10(1), 9-18 doi:10.12691/ajn-10-1-2