Table 2.
Optical energy band gap, Urbach energy of PVC + x % BVO nanocomposite films.
| Sample code | Egap (eV) | EUrbach (meV) | |
|---|---|---|---|
| Direct | Indirect | ||
| PVC | 4.12 | 4.16 | 78 |
| PVC + 1% BVO | 4.10 | 4.15 | 81 |
| PVC + 3% BVO | 4.09 | 4.13 | 117 |
| PVC + 6% BVO | 4.05 | 4.08 | 170 |
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