Figure 2From: Fabrication and sensing behavior of one-dimensional ZnO-Zn2GeO4 heterostructuresXPS narrow-scan spectra from the ZGO crystallites. (a) XPS narrow-scan spectrum of Zn 2p3/2. (b) XPS narrow-scan spectrum of Ge 3d. (c) XPS narrow-scan spectrum of O 1 s.Back to article page