Fig. 5From: Influence of Atomic Hydrogen, Band Bending, and Defects in the Top Few Nanometers of Hydrothermally Prepared Zinc Oxide NanorodsUPS and XPS valence band spectra from surface to bulk of a UPS of as-prepared ZnO NRs in the absence of H2O before atomic hydrogen cracking (AHC), b XPS of as-prepared ZnO NRs without H2O before AHC, c UPS of as-prepared ZnO NRs without H2O after AHC, and d XPS of as-prepared ZnO NRs without H2O after AHC. All UPS and XPS valence spectra after AHC are seen be less noisy and smooth compared to that of not being treated by hydrogenBack to article page