Cu concentration (%) | Bandgap (eV) | Crystallite size (nm) | Film Thickness (nm) |
x = 0.00 | 3.60 | 13 | 400 |
x = 0.01 | 3.55 | 12 | 415 |
x = 0.03 | 3.49 | 9 | 435 |
x = 0.05 | 3.47 | 11 | 500 |
x = 0.1 | 3.35 | 21 | 610 |
x = 0.2 | 3.32 | 20 | 750 |