Fig. 7: R2R slot-die coating and device performance for the 2D perovskite film.
From: Crystallisation control of drop-cast quasi-2D/3D perovskite layers for efficient solar cells
a R2R slot-die coating of a 2D perovskite film; b the J–V curve for a champion perovskite solar cell and photograph of the iso-BA-2D perovskite film prepared using the R2R process (inset).
