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. 2022 Jun 21;7(26):22861–22871. doi: 10.1021/acsomega.2c02613

Table 1. Fitting Results of O 1s XPS Spectra of Commercial ZnO and VO-Rich ZnOa.

mater. oxy. B. E. (eV) perc. (%)
commercial ZnO OL (Zn–O) 530.07 84.57
  VO (vacancy) 531.32 9.21
  OC (chemisorbed) 532.11 6.22
VO-rich ZnO OL (Zn–O) 530.14 52.36
  VO (vacancy) 531.86 36.27
  OC (chemisorbed) 533.39 11.37
a

Mater.: materials; oxy.: oxygen species; B. E.: binding energy; and perc.: relative percentage.