Properties of Inorganic Perovskites

Inorganic metal halide perovskites (IMHPs) haveInorganic perovskites emerged as a class of highly promising and cost-effective semiconductor materials for next-generation optoelectronic applications due to their remarkable properties, such as strong optical absorption, high luminescent efficiencies, long carrier diffusion lengths, and tunable bandgaps. The incorporation of various metal cations in IMHPs allows for their chemical componentsChemical component and structures to be regulated, leading to controllable modulation of their optoelectronic propertiesOptoelectronic property.. In this chapter, we present a comprehensive introduction to the chemical componentsChemical component and crystal structuresCrystal structure of IMHPs, including both classic inorganic lead halide perovskites and novel lead-free metal halides with perovskite and perovskite-like structures. Moreover, we provide a detailed summary of the optoelectronic propertiesOptoelectronic property. and stabilities of IMHPs and how they change with the chemical componentsChemical component, crystal structureCrystal structure, size, temperature, and pressure. Additionally, we illustrate the novel self-trapped exciton mechanism of luminescence in lead-free metal halides and discuss their differences from classic lead halide perovskites.