The parameters of the time-resolved PL spectra of the perovskite single crystals: (FA0.9MA0.05Cs0.05)PbI3, (FA0.85MA0.1Cs0.05)PbI3, (FA0.8MA0.15Cs0.05)PbI3 and (FA0.75MA0.2Cs0.05)PbI3.
| Samples | τ ave [μs] | τ 1 [μs] | τ 2 [μs] |
|---|---|---|---|
| (FA0.9MA0.05Cs0.05)PbI3 | 3.637 | 5.336 | 1.259 |
| (FA0.85MA0.1Cs0.05)PbI3 | 4.120 | 6.092 | 1.523 |
| (FA0.8MA0.15Cs0.05)PbI3 | 5.957 | 8.234 | 1.808 |
| (FA0.75MA0.2Cs0.05)PbI3 | 5.030 | 7.098 | 1.617 |