Fig. 1. (Color online) (a) Time-resolved photoluminescence of GuaSCN-based perovskite film. Reproduced with permission^[11], Copyright 2019, Science Publishing Group. (b) X-ray diffraction patterns for the perovskite films with and without FPEAI. Reproduced with permission^[13], Copyright 2020, American Chemical Society. Schematics for perovskite films treated with (c) TEAI and (d) TEASCN, and the corresponding energy level diagrams. Reproduced with permission^[17], Copyright 2022, Wiley-VCH.

Fig. 2. (Color online) (a) Schematic for the selective targeting anchor strategy by using EDAI₂ and PEAI. Reproduced with permission^[19], Copyright 2022, Wiley-VCH. (b) Schematic for the crystal growth without and with PDA cations. Reproduced with permission^[21], Copyright 2022, Wiley-VCH. (c) Molecular dynamics snapshots and top views for perovskite surfaces anchored with CF3-PA, PA and PEA, respectively. Reproduced with permission^[22], Copyright 2022, Nature Publishing Group.