Table 1 Quantification results extracted from XPS survey spectra of a perovskite δ-FAPbI3, MAPbI3, and FA0.7MA0.3PbI3 sample materials.
Material | Core level | Peak position (eV) | FWHM (eV) | Area | Atomic Con. (%) |
|---|---|---|---|---|---|
δ-FAPbI3 | I 3d | 620.03 | 2.94 | 420,863.54 | 24 |
Pb 4f. | 139.17 | 3.07 | 194,733.95 | 12.61 | |
C 1 s | 286.76 | 5.97 | 26,964.96 | 42.56 | |
N 1 s | 401.33 | 2.93 | 22,372.83 | 20.83 | |
MAPbI3 | I 3d | 619.85 | 2.92 | 321,962.04 | 25.73 |
Pb 4f. | 139.26 | 2.95 | 161,870.21 | 14.69 | |
C 1 s | 286.32 | 4.02 | 22,173.65 | 49.05 | |
N 1 s | 402.59 | 3.68 | 8059.96 | 10.53 | |
FA0.7MA0.3PbI3 | I 3d | 619.85 | 2.94 | 471,378.36 | 19.34 |
Pb 4f. | 138.98 | 3.12 | 223,749.57 | 10.42 | |
C 1 s | 286.14 | 3.63 | 39,216.34 | 44.52 | |
N 1 s | 401.27 | 3.77 | 20,896.58 | 14.00 | |
O 1 s | 533.36 | 3.58 | 26,321.35 | 11.71 |
