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Photovoltaic parameters of the 4T perovskite/silicon tandem solar cell
| Device type | JSC (mA cm−2) | VOC (V) | FF (%) | PCE (%) |
|---|---|---|---|---|
| The top cell (ST-PSC) | 20.54 | 1.231 | 80.65 | 20.39 |
| The bottom cell (hybrid-BC) | 20.86 | 0.724 | 84.21 | 12.71 |
| 4T-tandem (1 cm2) | / | / | / | 33.10 |
