Structural Design and Applications of Chiral Perovskites

Chiral perovskites, due to their unique optical and electronic properties, show broad application prospects in fields such as photonics, spintronics, and photodetection. This review systematically summarizes the research progress of chiral perovskites, covering chiral optical phenomena, structural design of chiral perovskites, synthesis strategies, and their applications in functional devices. By introducing chiral organic ligands, chiral perovskites have successfully achieved chiral transfer from the molecular scale to the crystal structure, inheriting the advantages of traditional perovskite materials such as high carrier mobility, tunable bandgap, and strong light absorption while also enabling precise control of the spin state of light and the direction of charge transport. This paper explores the applications of chiral perovskites in circularly polarized light (CPL) detection, spin light-emitting diodes (spin-LEDs), and solar cells, and introduces innovative strategies for improving device performance. In addition, this paper also discusses the challenges faced by chiral perovskite materials, such as the toxicity of lead-based materials and the impact of complex synthesis processes on large-scale applications. Finally, this paper looks forward to future research directions, aiming to achieve chiral function integration and large-scale device manufacturing, and to promote the further development of chiral perovskite materials in the fields of energy and information technology.