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Positions of absorption and PL peaks of ZnO thin films of different thickness.
| Thickness (nm) |
Peak positions | |||
|
V(O++) (eV) |
(Oi) (eV) |
V(Zn0) (eV) |
Band tail states (eV) |
|
| 25 | 2.01103 | — | 3.08374 | 3.21019 |
| 49.8 | 1.96819 | 2.24953 | 3.09573 | 3.22453 |
| 124 | 1.88601 | 2.12068 | 3.14621 | 3.24162 |
| 250 | 2.01575 | 2.24768 | 3.12942 | 3.2352 |
