Research Article
The Effects of Ag Nanoislands on the Volatile Threshold-Switching Behaviors of Au/Ag/HfO2/Ag Nanoislands/Au Devices
Figure 4
(a) XPS full spectra of HfO2 on SiO2/Si and HfO2 on Ag NIs/SiO2/Si at the surfaces, (b) the O 1 s feature peaks of HfO2 on SiO2/Si and HfO2 on Ag NIs/SiO2/Si at the surfaces, (c), (d) the O 1 s feature peaks of HfO2 on SiO2/Si and on Ag NIs/SiO2/Si after etching for 7 and 14 s, respectively, and (e), (f) XPS full spectra of HfO2 on SiO2/Si and on Ag NIs/SiO2/Si after etching for 7 and 14 s, respectively.
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