Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.663
Publication date: 16th December 2024
Over the last decade, metal halide perovskite nanocrystals (LHP NCs) and their derivatives, in the form of nano and bulk crystals, have emerged as a promising class of semiconductor materials with many interesting linear and nonlinear optical properties.1 The light emission of LHP NCs is not only tunable by their dimensions and composition2 but also through self-assembly into ordered architectures.1-4 Interestingly, LHP NCs spontaneously self-assemble into superlattices and exhibit interesting optical properties such as polarized emission.5 On the other hand, low-dimensional metal halide crystals with chiral ligands exhibit chiroptical properties. This talk will be focused on the latest developments in achieving polarized absorption and emission from metal halide crystals either by self-assembly of NCs, using chiral filters, or helical structural engineering.
References
1. Dey et al., State of the Art and Prospects for Halide Perovskite Nanocrystals. ACS Nano 2021, 15 (7), 10775-10981
2. Otero-Martínez et al., Dimensionality Control of Inorganic and Hybrid Perovskite Nanocrystals by Reaction Temperature: From No-Confinement to 3D and 1D Quantum Confinement. Angew. Chem. Int. Ed. 2021, 60 (51), 26677-26684.
3. Vila-Liarte et al., Templated-Assembly of CsPbBr3 Perovskite Nanocrystals into 2D Photonic Supercrystals with Amplified Spontaneous Emission. Angew. Chem. Int. Ed. 2020, 59 (40), 17750-17756.
4. Gu et al. Color-Tunable Lead Halide Perovskite Single-Mode Chiral Microlasers with Exceptionally High glum. Nano Letters 2024. 24, 13333-13340
5. Mendoza‐Carreño et al. Nanoimprinted 2D‐chiral Perovskite Nanocrystal Metasurfaces for Circularly Polarized Photoluminescence. Adv. Mater. 2023, 35, 2210477
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