Table 2. Calculated energies of H–L and Egap and Hoffset and Loffset (in eV) with respect to perovskites of all studied systems.
| Molecules | H (eV) | L (eV) | E gap (eV) | H offset | L offset |
|---|---|---|---|---|---|
| REF | −5.04 | −1.33 | 3.72 | 0.36 | 2.57 |
| M1 | −5.72 | −4.10 | 1.62 | −0.32 | −0.20 |
| M2 | −5.66 | −4.13 | 1.52 | −0.26 | −0.23 |
| M3 | −5.61 | −4.13 | 1.48 | −0.21 | −0.23 |
| M4 | −5.54 | −4.11 | 1.44 | −0.14 | −0.21 |
| M5 | −5.49 | −4.11 | 1.38 | −0.09 | −0.21 |
| M6 | −5.41 | −4.07 | 1.35 | −0.01 | −0.17 |
| FAPbI3 | −5.40 | −3.90 |