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Optical bandgaps of the MASnI3 samples treated with toluene, diethyl ether, and chlorobenzene.
| Sample | λ (nm) | Eg from PL (eV) | λ (nm) | Eg from UV (eV) | Stokes Shift (meV) |
|---|---|---|---|---|---|
| MASnI3-ET | 779 | 1.59 | 750 | 1.63 | 40 |
| MASnI3-TOL | 782 | 1.58 | 759 | 1.60 | 20 |
| MASnI3-CBZ | 787 | 1.57 | 760 | 1.62 | 50 |
