Research Article
Interface Study of ITO/ZnO and ITO/SnO2 Complex Transparent Conductive Layers and Their Effect on CdTe Solar Cells
Table 1
The parameters used in the AMPS-1D simulation.
| | | ITO | ZnO | SnO2 | CdS | CdTe |
| | Eg (eV) | 3.72 | 3.27 | 4.11 | 2.42 | 1.46 | | EPS | 9.4 | 9 | 9 | 9 | 9.4 | | Electron mobility (cm2/V/s) | 30 | 100 | 3.6 | 340 | 500 | | Hole mobility (cm2/V/s) | 5 | 25 | 1 | 50 | 60 | | Carrier density (cm−3) | 4.3 1020 | 1019 | 2.4 1018 | 1017 | 2 1015 | | Density of state, CB (cm−3) | 4 1019 | 1.8 1019 | 1.8 1019 | 1.8 1019 | 7.5 1017 | | Density of state, VB (cm−3) | 1018 | 2.4 1018 | 2.4 1018 | 2.4 1018 | 1.8 1018 | | Electron affinity | 3.6 | 4 | 3.44 | 4.5 | 4.28 | | Thickness (m) | 0.4 | 0.15 | 0.15 | 0.15 | 6 |
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