Table 3 The XPS results of ZnO and 3 % Ta-doped ZnO before and after Ar-ion etching
From: The Antibacterial Activity of Ta-doped ZnO Nanoparticles
Samples | Ar-ion etching | O | Zn | O/Zn ratio |
|---|---|---|---|---|
ZnO | No | 44.09 | 32.01 | 1.38 |
ZnO | Yes | 45.52 | 46.96 | 0.97 |
3 % Ta-doped ZnO | No | 37.94 | 28.04 | 1.35 |
3 % Ta-doped ZnO | Yes | 50.43 | 42.06 | 1.20 |