Suppressing Polaronic Defect–Photocarrier Interaction in Halide Perovskites by Pre-distorting Its Lattice

G Alkhalifah, B Wang, OV Prezhdo… - Journal of the American …, 2025 - ACS Publications
In halide perovskites, photocarriers can have strong polaronic interactions with point defects.
For iodide-deficient MAPbI3, we found that the Fermi level can shift significantly by 0.6–0.7 …