Table 2. Summary of photovoltaic properties of planar MAPbI3 hybrid solar cells with various HTMs.
| HTMs | Scan direction | V oc | J sc | FF (%) | η (%) | η avg a (%) |
| Di-TPA | Forward | 1.03 | 20.4 | 71.6 | 15.0 | 15.3 |
| Reverse | 1.03 | 20.5 | 73.3 | 15.5 | ||
| Tri-TPA | Forward | 1.03 | 21.4 | 73.6 | 16.2 | 16.3 |
| Reverse | 1.03 | 21.4 | 74.4 | 16.4 | ||
| Tetra-TPA | Forward | 1.05 | 21.8 | 77.7 | 17.8 | 17.9 |
| Reverse | 1.05 | 22.0 | 78.0 | 18.0 |
aPCE values averaged over forward and reverse scans.