Atomic periodic engineering enabled ultrathin high-efficiency AgBiS 2 solar cells.
Xue LiuHongbin XiaoZhigang ZangRu LiPublished in: Chemical communications (Cambridge, England) (2022)
The ultrahigh optical absorption coefficient of AgBiS 2 has been achieved by atomic periodic engineering of AgS 6 and BiS 6 octahedrons. Furthermore, strong dielectric constant modulation and direct band gap of tetra- I 4 1 / amd AgBiS 2 are obtained, which enable a high spectroscopic limited maximum efficiency of 29.7% at an ultrathin thickness of 100 nm.