Low-Dimensional-Networked Cesium Lead Halide Perovskites: Properties, Fabrication, and Applications

All-inorganic cesium lead halide perovskites have emerged as promising optoelectronic materials with excellent photophysical properties and great potential in a variety of applications. In parallel with the most investigated CsPbX3, its derivates, Cs(4)PbX(6)and CsPb2X5, with low-dimensional-networked structures have also attracted great attention. In this review, recent advancements on the low-dimensional-networked cesium lead halide perovskites (Cs(4)PbX(6)and CsPb2X5) are reviewed systematically. The optical properties and direct controllable synthesis methods are first introduced. The transformation between Cs(x)Pb(y)X(z)and their hybridization are then presented, followed by their wide applications. Finally, challenges and prospects of this class of perovskites are introduced.