Figure 1.

Structure of CsPbBr₃ NC SPs. (a) Low-magnification overview image, showing a relatively low coverage of large, cuboid-shaped SPs. (b) Zoom-in on the marked region in (a) showing a single SP with a nearly cubic shape. (c) Zoom-in on the marked area in (b) showing nearly aligned NCs in a dense cubic stacking. The individual NCs in the SP are clearly visible. (d) Further zoom-in on the marked area in (c). Clearly visible columns of NCs in the lattice of the SP, hinting toward a simple-cubic packing of the constituent NCs inside the SP.