Synthesis and Characterization of Two-dimensional Cs2AgInCl6 Nanoplates as Building Blocks for Functional Surfaces
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arXiv
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| Auteurs principaux: | , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866912216624660480 |
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| author | Khalfin, Sasha Veber, Noam Shaek, Saar Shamaev, Betty Levy, Shai Dror, Shaked Kauffmann, Yaron Khristosov, Maria Koifman Bekenstein, Yehonadav |
| author_facet | Khalfin, Sasha Veber, Noam Shaek, Saar Shamaev, Betty Levy, Shai Dror, Shaked Kauffmann, Yaron Khristosov, Maria Koifman Bekenstein, Yehonadav |
| contents | Breaking crystal symmetry is essential for engineering emissive double perovskite metal halides. The goal is to overcome their inherently indirect and disallowed optical transitions. Here we introduce a synthesis for silver - Cs2AgInCl6 two-dimensional hybrid nanoplate products that break the symmetry in two ways, their shape and their heterointerfaces. A comparative study between Cs2AgInCl6 nanocubes and nanoplates is presented to emphasize the difference in optical properties. A modified colloidal synthesis for Cs2AgInCl6 yields high-quality nanoplates with small lateral dimensions very different from the symmetric cubes. Each nanoplate is decorated with metallic silver nanoparticles, with diameters on the scale of the thickness of the perovskite nanoplate, forming significant heterointerfaces that further break symmetry. The Cs2AgInCl6 two-dimensional nanoplates also demonstrate facile transformation into larger crystalline nanosheets once deposited on substrates. We thus highlight those nanoplates as potential building blocks for assemblies of functional surfaces. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_00468 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Synthesis and Characterization of Two-dimensional Cs2AgInCl6 Nanoplates as Building Blocks for Functional Surfaces Khalfin, Sasha Veber, Noam Shaek, Saar Shamaev, Betty Levy, Shai Dror, Shaked Kauffmann, Yaron Khristosov, Maria Koifman Bekenstein, Yehonadav Materials Science Mesoscale and Nanoscale Physics Breaking crystal symmetry is essential for engineering emissive double perovskite metal halides. The goal is to overcome their inherently indirect and disallowed optical transitions. Here we introduce a synthesis for silver - Cs2AgInCl6 two-dimensional hybrid nanoplate products that break the symmetry in two ways, their shape and their heterointerfaces. A comparative study between Cs2AgInCl6 nanocubes and nanoplates is presented to emphasize the difference in optical properties. A modified colloidal synthesis for Cs2AgInCl6 yields high-quality nanoplates with small lateral dimensions very different from the symmetric cubes. Each nanoplate is decorated with metallic silver nanoparticles, with diameters on the scale of the thickness of the perovskite nanoplate, forming significant heterointerfaces that further break symmetry. The Cs2AgInCl6 two-dimensional nanoplates also demonstrate facile transformation into larger crystalline nanosheets once deposited on substrates. We thus highlight those nanoplates as potential building blocks for assemblies of functional surfaces. |
| title | Synthesis and Characterization of Two-dimensional Cs2AgInCl6 Nanoplates as Building Blocks for Functional Surfaces |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2502.00468 |