Photodetectors based on inorganic halide perovskites: Materials and devices
Li Ying1, Shi Zhi-Feng1, †, Li Xin-Jian1, Shan Chong-Xin1, 2, ‡
       

Optical microscopy images and crystal structure diagrams of (a) CsPbBr3 and (b) Cs4PbBr6 crystals (orange octahedrons, [PbBr6]4−; green dots, Cs atoms; blue dots, Br atoms).[70]