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| Samples | Dose of gamma radiation (kGy) | |||
|---|---|---|---|---|
| Band gap value (eV) | ||||
| 0 | 10 | 500 | 1500 | |
| GO powder | 2.00 ± 0.02 eV | 1.60 ± 0.02 eV | 1.44 ± 0.02 eV | 1.33 ± 0.02 eV |
| 1% GO/PVA | 2.69 ± 0.02 eV | 2.60 ± 0.02 eV | 2.57 ± 0.02 eV | 2.00 ± 0.02 eV |
| 5% GO/PVA | 1.88 ± 0.02 eV | 1.63 ± 0.02 eV | 1.44 ± 0.02 eV | 1.20 ± 0.02 eV |
