TABLE 1.
Comparison of THz-wave absorption properties of each perovskite thin film.
| Sample | Peak 1 (buckling vibration) | Peak 2 (translation vibration) | Peak 3 | Lattice constant (Å) | Crystal structure (RT) |
|---|---|---|---|---|---|
| MA(Sn,Pb) (Br,I)3 | 1.0 THz | 1.7 THz | No peak | 6.20 | Cubic |
| MAPbI3 Maeng et al. (2019) | 0.95 THz | 1.87 THz | 1.58 THz (Defect-incorporated) | 6.27 | Tetra |
| MAPbBr3 Maeng et al. (2020a) | 0.85 THz | 1.38 THz | 2.00 THz (Br self-vibration) | 5.95 | Cubic |
| MASnI3 Li and Rinke. (2016) | There is no significant THz-wave absorption | 6.23 | Cubic | ||