Figure 5From: Photocurrent detection of chemically tuned hierarchical ZnO nanostructures grown on seed layers formed by atomic layer depositionXPS spectra. (a) Al 2p and (b) Zn 2p3/2 for ZnO/Al2O3 (1 nm/5 nm) and ZnO/Al2O3 (18 nm/5 nm) seed layers, respectively.Back to article page