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PV performance of champion all-perovskite tandem solar cell and corresponding single-junction subcells
| Scan direction | Voc (V) | Jsc (mA cm−2) | FF (%) | PCE (%) | |
|---|---|---|---|---|---|
| WBG subcell | Reverse | 1.324 | 17.9 | 83.0 | 19.6 |
| Forward | 1.317 | 17.9 | 82.6 | 19.5 | |
| NBG subcell | Reverse | 0.843 | 32.0 | 79.3 | 21.3 |
| Forward | 0.841 | 31.9 | 78.7 | 21.1 | |
| 2 T tandem | Reverse | 2.135 | 16.2 | 81.5 | 28.1 |
| Forward | 2.132 | 16.1 | 82.0 | 28.1 |
