Figure 8.

a) Schematic of growing (PEA)₂PbBr₄ single crystal using solution method. Reproduced with permission.^{[ 136 ]} Copyright 2019, Royal Society of Chemistry. b) Photographs of centimeter‐sized RPP single crystals and AFM images after mechanical peeling. Reproduced with permission.^{[ 138 ]} Copyright 2018, Nature Publishing Group. c) Schematic of manufacturing process of 2D organic perovskite thin‐film spin‐coating process. Reproduced with permission.^{[ 139 ]} Copyright 2020, American Chemical Society.