Research Article
A Numerical Approach to Analysis of an Environment-Friendly Sn-Based Perovskite Solar Cell with SnO2 Buffer Layer Using SCAPS-1D
Table 1
Simulation parameters used in SCAPS-1D (where CB stands for conduction band, VB for valence band, and DOS for density of states) and (
) for variables.
| | Parameters (unit) | ETL | Buffer | Absorber | | ZnO [18] | SnO2 [36, 37] | CH3NH3SnI3 [18] |
| | Thickness (μm) | 0.05 | 0.05 | 1.5 | | Bandgap (eV) | 3.2 | 3.6 | 1.3 | | Electron affinity (eV) | 4.1 | 4 | 4.2 | | Dielectric permittivity (relative) | 8.1 | 9 | 10 | | CB effective DOS (cm−3) | 4.500E + 18 | 2.200E + 18 | 1.000E + 18 | | VB effective DOS (cm−3) | 1.000E + 18 | 1.800E + 19 | 1.000E + 18 | | Electron thermal velocity (cm/s) | 1.000E + 7 | 1.000E + 7 | 1.000E + 7 | | Hole thermal velocity (cm/s) | 1.000E + 7 | 1.000E + 7 | 1.000E + 7 | | Electron mobility (cm2/V–s) | 3.000E + 2 | 1.000E + 2 | 1.600E + 0 | | Hole mobility (cm2/V–s) | 1.000E + 0 | 2.500E + 1 | 1.600E + 0 | | Donor density ND (cm−3) | 1.000E + 19 | 5.000E + 14 | 0 | | Acceptor density NA (cm−3) | 0 | 0 | 3.200E + 15 |
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