Table 6.
Summary of dielectric constant of different materials with structural in‐plane anisotropy obtained from theoretical calculations[ 31 , 214 , 216 , 218 ]
| Materials | Layer number/thickness | Dielectric constant (ε) | EQE [%] | References | |
|---|---|---|---|---|---|
| Si | 2 nm thick | 11.9 | – | [ 215 , 216 ] | |
| MoS2 | Monolayer | 7 | – | [ 214 , 216 ] | |
| BP | 7.47 (armchair) | 3.06 (zigzag) | – | [ 218 ] | |
| GeS | 8.7 (armchair) | 8.6 (zigzag) | 10.27 | [ 31 , 41 ] | |
| GeSe | 13.8 (armchair) | 14.7 (zigzag) | 25.43 | [ 31 , 41 ] | |
| SnS | 9.9 (armchair) | 10.0 (zigzag) | 22.01 | [ 31 , 41 ] | |
| SnSe | 12.5 (armchair) | 12.8 (zigzag) | 30.32 | [ 31 , 41 ] |