Metformin Spacer Conformation Is a Structure-Directing Element in a 2D Perovskite with Strong X-ray Response
Direct X-ray detection in two-dimensional (2D) hybrid metal-halide perovskites is dictated by the interplay between organic spacer chemistry, crystal structure, and charge transport. Among these materials, the metformin (MF2+)-based perovskite MFPbI4 has recently emerged as a promising X-ray detector, exhibiting high...