Inorganic Lead Halide Perovskite Micro-/Nanostructures: From Self-Assembly to Applications

Inorganic lead halide perovskites (ILHPs), an emergingclass ofsemiconductors, hold great potential for a broad spectrum of applications,ranging from solar cells and light-emitting diodes (LEDs) to scintillatorsand lasers, due to ILHPs' exceptional optical/electronic properties.The properties of ILHPs are closely related to their micro-/nanostructures,and thus controlling the micro-/nanostructures of ILHPs is highlydesired to promote further development. Self-assembly, a common butpowerful method, has recently been explored for the synthesis andcontrol of the micro-/nanostructures of ILHPs. In this Review, wefirst summarize recent advances in the self-assembly of ILHPs intomicro-/nanostructures and pay attention to main factors that can influencethe self-assembly process. We then illustrate representative applicationsof the self-assembled micro-/nanostructures of ILHPs, including photodetectors,LEDs, lasers, and X-ray imaging. And last, we offer our perspectiveson the self-assembled micro-/nanostructures of ILHPs, particularlytheir applications.