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. 2021 Jan 4;8(4):2003334. doi: 10.1002/advs.202003334

Figure 3.

Figure 3

Halide perovskite structures with different dimensionalities at the molecular level. a) The unit cell of 3D perovskite. b) The <010> orientation projection of 3D halide perovskites. c) The crystal structure of <001>‐oriented 2D perovskite (n = 1). d) The crystal structure of <001>‐oriented quasi‐2D perovskite (n = 2). e) The crystal structure of <110>‐oriented 2D perovskite (n = 2). f) The crystal structure of <111>‐oriented 2D perovskite (n = 2). g) The crystal structure of 1D perovskite with octahedra connecting in a chain form. h) The crystal structure of 0D perovskites with the isolated octahedra.