Kwon Boesung, Park Jonghyun, Choi Wonbin, Song Haeni, Oh Joon Hak
School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea.
ACS Appl Mater Interfaces. 2025 Oct 1;17(39):54356-54379. doi: 10.1021/acsami.5c11259. Epub 2025 Sep 16.
Chiral hybrid organic-inorganic perovskites (HOIPs) are gaining attention as multifunctional materials for circularly polarized light (CPL) detection and emission, spintronic applications, and emerging neuromorphic computing. Their performance hinges on the structural and electronic properties induced by chiral organic cations, which break inversion symmetry and modulate lattice distortion. This review presents a systematic overview of ligand engineering strategies─including aromatic, halogenated, polymerizable, and π-conjugated systems─and examines how ligand geometry, hydrogen bonding, and steric effects impact chiroptical properties. Additionally, we discuss recent advances in device architectures that exploit chiral HOIPs, such as two-photon-responsive photodetectors, spin-filtering interfaces, and CPL-responsive synaptic devices. External modulation of chirality via strain or surface anchoring is also highlighted as a tool for enhancing device performance. This review provides molecular-level design insights to advance the development of high-performance chiral optoelectronic systems.
手性有机-无机杂化钙钛矿（HOIPs）作为用于圆偏振光（CPL）检测与发射、自旋电子学应用以及新兴神经形态计算的多功能材料正受到关注。它们的性能取决于手性有机阳离子诱导的结构和电子性质，这些阳离子打破了反演对称性并调节晶格畸变。本综述系统概述了配体工程策略，包括芳香族、卤化、可聚合和π共轭体系，并研究了配体几何形状、氢键和空间效应如何影响手性光学性质。此外，我们还讨论了利用手性HOIPs的器件架构的最新进展，如双光子响应光电探测器、自旋过滤界面和CPL响应突触器件。通过应变或表面锚固对手性进行外部调制也被强调为提高器件性能的一种手段。本综述提供了分子水平的设计见解，以推动高性能手性光电器件系统的发展。
