| CuO Thin Films | |||
| Temperature | Wavelength (PL) | ||
| Air | O2 | N2 | |
| Room Temperature | 568 nm | ||
| 100˚C | 587 nm | 576 nm | 572 nm |
| 200˚C | 595 nm | 585 nm | 593 nm |
| 300˚C | 598 nm | 590 nm | 595 nm |
| 400˚C | 607 nm | 595 nm | 598 nm |