Table 1
Light path enhancement factors as function of ZnO:Al roughness. The light path enhancement factors of three different wavelengths (656 nm, 760 nm, 890 nm) were calculated from in-situ transmission measurements (win - situ) and quantum efficiency measurements of the solar cells (wex - situ).
| 656 nm | 760 nm | 890 nm | ||||
|
|
||||||
| ZnO:Al roughness [nm] | w in - situ | w ex - situ | w in - situ | w ex - situ | w in - situ | w ex - situ |
|
|
||||||
| 6.7 | 1.3 | 1.36 | 1.6 | 2.31 | 3.1 | 3.09 |
| 59.5 | 1.56 | 1.61 | 3.33 | 3.96 | 5.09 | 5.81 |
| 78.0 | 2.05 | 1.77 | 4.92 | 4.49 | 11.08 | 6.61 |
| 100.4 | 2.61 | 1.92 | 5.80 | 5.45 | 16.51 | 8.49 |
| 109.8 | 2.99 | 1.97 | 7.22 | 5.97 | 18.13 | 9.16 |
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