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| Type | J sc (mA cm−2) | V oc (V) | FF (%) | PCE (%) |
|---|---|---|---|---|
| SnO2 device reverse | 20.55 | 1.03 | 74.13 | 15.69 |
| SnO2 device forward | 20.51 | 1.02 | 67.88 | 14.14 |
| Yb-doped SnO2 device reverse | 21.85 | 1.06 | 74.40 | 17.31 |
| Yb-doped SnO device forward | 21.81 | 1.05 | 73.23 | 16.70 |
