Hybrid organic–inorganic perovskites (HOIPs) offer long carrier-diffusion lengths, high absorption coefficients, tunable band gaps and long spin lifetimes. The flexible crystal structure and ionic nature of HOIPs make it possible to allow tuning of their material properties through rational design, including the incorporation of chiral organic ligands. Recently, chiral HOIPs have emerged as promising materials for chiroptoelectronics, spintronics and ferroelectrics. They exhibit high photoluminescence polarization (17% without an external magnetic field), good device performance (a circularly polarized photodetector had 100 times higher responsivity than one based on a chiral metasurface) and high saturated polarization (~2 times higher than that of barium titanate). Here, we review the latest advances in chiral HOIPs and investigate the specific benefits of combining chiral organic and inorganic components in perovskites. We discuss demonstrations of chiroptical and ferroelectric applications, and conclude with our perspective on the future opportunities for chiral HOIPs.

有机-无机钙钛矿杂化物（HOIPs）具有长的载流子扩散长度，高的吸收系数，可调的带隙和长的自旋寿命。HOIPs的柔性晶体结构和离子性质使其可以通过合理的设计（包括引入手性有机配体）来调节其材料性能。近来，手性HOIPs已经成为用于人体电子学，自旋电子学和铁电学的有前途的材料。它们表现出高的光致发光极化（无外部磁场的情况下为17％），良好的器件性能（圆偏振光电探测器的响应度比基于手性金属表面的响应度高100倍）和高饱和极化率（比钛酸钡高约2倍） ）。这里，我们回顾了手性HOIPs的最新进展，并研究了将手性有机和无机成分结合在钙钛矿中的特定益处。我们讨论了手性和铁电应用的演示，并以我们对手性HOIP的未来机会的观点作了总结。