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Figure 4. (A) Schematic diagram of iodine immobilization and regeneration of photoactive perovskites via βCD incorporation and modification. (B) Stability test of control and βCD-modified PSCs under ISOS protocol. Reprinted with permission^[12]. Copyright © 2023 Royal Society of Chemistry. (C) Molecular structure of Starch and Starch-I, along with proposed functions of the Starch- I buffer layer regarding halides diffusion inhibition and halide vacancies healing upon applied bias. (D) PCE tracking of the reference (Ref) and Starch-I devices upon day and night cycle operation. Reprinted with permission^[13]. Copyright © 2023 Springer Nature Limited.