From: Effect of concentration, aging, and annealing on sol gel ZnO and Al-doped ZnO thin films
Concentration (Mol) | Age time (hours) | Band gap (eV) dT/dλ method | Band gap (eV) Tauc method | R2 | ∆ (eV) |
---|---|---|---|---|---|
0.2 | 24 | 3.40 | 3.36 | 0.995772 | 0.04 |
0.2 | 48 | 3.40 | 3.38 | 0.995986 | 0.02 |
0.2 | 72 | 3.28 | 3.27 | 0.998545 | 0.01 |
0.4 | 24 | 3.36 | 3.38 | 0.997285 | 0.02 |
0.4 | 48 | 3.36 | 3.27 | 0.992703 | 0.02 |
0.4 | 72 | 3.27 | 3.28 | 0.998453 | 0.01 |
0.6 | 24 | 3.35 | 3.38 | 0.999094 | 0.03 |
0.6 | 48 | 3.29 | 3.38 | 0.997849 | 0.09 |
0.6 | 72 | 3.24 | -- | -- | -- |
0.8 | 24 | 3.37 | 3.37 | 0.997265 | 0.00 |
0.8 | 48 | 3.35 | 3.35 | 0.99553 | 0.00 |
0.8 | 72 | 3.45 | -- | -- | -- |