| Metal | Work Function (eV) | Voc (V) | Jsc (mA∙cm−2 ) | FF (%) | PCE (%) |
| Flat | 3.9718 | 0.9685 | 25.991 | 82.99 | 20.89 |
| Al | 4.3 | 0.91 | 25.984 | 81.43 | 19.23 |
| Ti | 4.33 | 0.88 | 25.980 | 81.93 | 18.74 |
| Cr | 4.5 | 0.77 | 25.963 | 78.45 | 14.45 |
| Ag | 4.26 | 0.9475 | 25.988 | 82.47 | 20.31 |
| Zn | 4.2 | 0.9904 | 25.993 | 83.35 | 21.46 |
| Cu | 4.4 | 0.8086 | 25.9974 | 80.18 | 16.86 |