Figure 4

XPS spectra. (a) O 1 s, (b) Zn 2p_3/2, and (c) N 1 s for the synthesized ZnO nanostructures corresponding to the nanosheet grown on a ZnO/Al₂O₃ (1 nm/5 nm) seed layer and nanorod grown on a ZnO/Al₂O₃ (18 nm/5 nm) seed layer. The figure insets are diffraction patterns for each HRTEM image. The deconvoluted peaks corresponding to LP, MP, and HP components are shown as green, red, and blue peaks in (a), respectively.