Table 1
IV parameters of the TOPCon solar cells fabricated from different material types (Cz-Si, CM-UMG and CM-SoG). The results are averaged out of 6–9 cells with optimized firing temperature. These measurements are in-house measurements, the front contact is obtained by GridTouch, the rear contact by a non-conductive dark chuck together with rear contacting pins.
| Si material | Voc (mV) | Jsc (mA/cm2) | FF (%) | η (%) | pFF-FF (%) | FF0-pFF (%) |
|---|---|---|---|---|---|---|
| Cz-Si | 695.8 | 40.28 | 80.1 | 22.45 | 3.4 | 1.1 |
| CM-UMG | 689.8 | 40.14 | 79.2 | 21.94 | 3.2 | 2.1 |
| CM- SoG | 684.5 | 40.22 | 77.7 | 21.40 | 3.7 | 3.0 |
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