| Substrate Temperature (K) | Position of NBE Emission (eV) | Band Gap Eg from PL (Ev) | Resistivity ×10−2 (Ωcm) |
| 723 | 3.20 | 3.26 | 18 |
| 823 | 3.19 | 3.25 | 8 |
| 848 | 3.17 | 3.23 | 1.5 |
| 873 | 3.19 | 3.25 | 4.8 |