Challenges, Solutions, and Opportunities in Chiral Perovskites: From Synthesis Strategies to Technological Advancements.

The unique chiroptical characteristics of chiral perovskites are essential for controlling a range of optoelectronics and biological reactions. Designing and refining devices that depend on the interaction of chiral molecules with circularly polarized light require a thorough understanding of the principles of chiroptical characteristics. By adding appropriate chiral organic cations, these materials can be precisely tailored to provide tunable structural and optical properties that satisfy the unique needs of a variety of cutting-edge applications. For effective chirality transfer into the inorganic perovskite lattice, numerous creative design techniques have been used in addition to the use of chiral organic spacer cations. Using appropriate materials such as semiconductors and higher-dimensional perovskites to create heterojunction and heterostructures has changed the game and greatly improved the necessary chiroptical qualities. Moreover, chirality, the property of asymmetry in molecules, has been leveraged to expand the use of these materials in optoelectronics, energy harvesting, quantum computing, and biomedical applications, where the chiral nature of molecules can significantly impact their efficacy and behavior. In this review, we compile and analyze significant scientific reports on the design and synthesis methods of chiral perovskites, providing a comprehensive overview and addressing critical fundamental questions that are pivotal to the development of the next generation of chiral technological innovations.