Table 2 Bulk defect factors for the Sb2(S, Se)3 layer17,28,36,38.
From: Unveiling the role of dual grading in device optimization of HTL-free Sb2(S, Se)3 solar cells
Defect Parameters | Defect 1 | Defect 2 | Defect 3 |
|---|---|---|---|
Type | Single acceptor (-/0) | Single acceptor (-/0) | Single donor (0/+) |
Distribution | Uniform | Uniform | Uniform |
Electron/hole capture cross sections (cm2) | 1.0 × 10−15/ 1.5 × 10−17 | 1.0 × 10−15/ 4.9 × 10−13 | 4.0 × 10−13/ 1.0 × 10−15 |
Energy level (eV) | 0.48 (above Ev) | 0.71 (above Ev) | 0.61 (below Ec) |
Density (Nt) (cm−3) | 1.2 × 1015 | 1.1 × 1014 | 2.6 × 1014 |
