Elucidating the Origins of High Preferential Crystal Orientation in Quasi‐2D Perovskite Solar Cells (Adv. Mater. 5/2023)

Perovskite Solar Cells In article 2208061, Lukas E. Lehner, Martin Kaltenbrunner, and co-workers report the controlled nucleation of quasi-2D perovskites at liquid–air interface precursor solution. Restricting initial crystal growth to surface liquid results in highly aligned perovskite thin films with improved charge transport, enabling efficient solar cells excellent stability.