Table 4. Photovoltaic Performance Including Hysteresis Phenomenon for PSCs Based on Y1, Y2, Y3, and Spiro-OMeTAD, as Well as without Any Hole-Transport Material Applied.
| HTMs | scan direction | Jsc/mA cm–2 | Voc/V | FF | η/% |
|---|---|---|---|---|---|
| Y1 | reverse | 16.57 | 1.06 | 0.63 | 11.1 |
| Y1 | forward | 16.97 | 1.02 | 0.45 | 7.7 |
| Y2 | reverse | 11.01 | 1.00 | 0.55 | 6.0 |
| Y2 | forward | 11.92 | 0.94 | 0.31 | 3.5 |
| Y3 | reverse | 12.62 | 1.00 | 0.56 | 7.1 |
| Y3 | forward | 12.59 | 0.96 | 0.34 | 4.1 |
| Spiro-OMeTAD | reverse | 21.13 | 1.09 | 0.75 | 17.3 |
| Spiro-OMeTAD | forward | 21.51 | 1.08 | 0.66 | 15.4 |
| without HTM | reverse | 13.70 | 0.52 | 0.42 | 3.0 |