| Column Heading |
n-ZnO |
n-CdS |
p-CIGS |
| Layer thickness( µm ) |
0.1-0.5 |
0.05 |
3.0 |
| Dielectric constant, εr |
9.0 |
10.0 |
9.4 |
| Electron mobility µn ( cm2/Vs ) |
100 |
100 |
100 |
| Hole mobility, µp ( cm2/Vs ) |
25 |
25 |
25 |
| Defect density (cm-3) |
2 x 1016 |
2 x 1016 |
2 x 1016 |
| Electron and hole concentration, n, p (cm-3) |
1 x 1020 |
1 x 1020 |
2 x 108 |
| Density of states at conduction band, Nc (cm-3) |
2.2×1018 |
1.8×1019 |
7.5×1017 |
| Density of states at valence band, Nv (cm-3) |
1.8×1019 |
2.4×1018 |
1.8×1018 |
| Electron affinity, Xe (eV) |
4.50 |
4.2 |
4.5 |
| Energi gap, Eg (eV) |
3.1-3.4 |
2.4 |
1.5 |
