Table 1. Ionization Energy (IE), Electron Affinity (EA), Energy Gap (EG) and Work Function (ϕ) Extracted from the Combined Experimental–Theoretical Study Described in the Text for the Three Materials Investigated Here.
IE (eV) | EA (eV) | EG (eV) | ϕ (eV) | |
---|---|---|---|---|
MAPbI3 | 5.2 | 3.6 | 1.6 | 4.0 |
MAPbBr3 | 6.0 | 3.7 | 2.3 | 4.0 |
CsPbBr3 | 5.8 | 3.5 | 2.3 | 4.1 |