Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.462
Publication date: 16th December 2024
Introducing chiral organic spacers in low-dimensional metal-halide perovskites triggers chiroptical activity, making these materials of great interest for spintronic applications. To enable such applications, it is necessary to develop a deep understanding of the structure formation of chiral two-dimensional (2D) perovskites and its impact on their optical properties. While much attention has been dedicated to developing processing routes to control the properties of achiral 2D perovskites, the use of chiral cations introduces higher steric hindrance, thus significantly impacting structure formation. I will discuss how changing the processing conditions impacts the phase purity, microstructure, and chiroptical properties of chiral 2D perovskites. For example, in solution-processed chiral 2D perovskites, the choice of solvent or the use of additives enables control over the structure and microstructure of the deposited thin films. Alternatively, I will show that chiral 2D perovskites can be processed by thermal evaporation, opening new pathways to large-scale deposition and microstructuring.
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