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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2411.05739 |
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| _version_ | 1866908300541427712 |
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| author | Smith, Amy R. Zulqurnain, Muhammad Mathieson, Angus G. M. Szablewski, Marek Hunt, Michael R. C. |
| author_facet | Smith, Amy R. Zulqurnain, Muhammad Mathieson, Angus G. M. Szablewski, Marek Hunt, Michael R. C. |
| contents | Thin films and van der Waals heterostructures derived from two-dimensional solids offer enormous potential for a broad range of novel, energy efficient devices, however, their use is currently hampered by slow, labor-intensive fabrication methods often employing hazardous chemicals. We demonstrate a novel technique for rapid, low-cost and environmentally-friendly production of ultra-thin films and van der Waals heterostructures of two-dimensional solids from aqueous surfactant-stabilized suspensions, which we term `Liquid Interface Deposition'. Films are produced by the transfer of platelets of two-dimensional materials assembled at the interface between two immiscible liquids (water and dicholoromethane), at which surfactants which stabilize the two-dimensional materials in the aqueous phase are `stripped' from the platelets due to preferential partitioning of the surfactant to the non-aqeuous phase. The approach is generic to two-dimensional materials which can be stabilized in aqueous suspension by a surfactant and the resulting films can then be transferred to an arbitrary substrate by a range of approaches. The generic applicability of this technique is demonstrated through production of thin films on a variety of substrates, deposition of transparent, highly conductive, graphene films with conductivities between $7.7 \times 10^{3} - 1.26\times 10^{5}~\textrm{S m}^{-1}$ and transmittances of 55-75%, and by the fabrication of van der Waals heterostructures of MoS$_2$, WS$_2$, and few-layer graphene. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_05739 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A Novel Liquid-Liquid Interface Deposition Method for the Production of Thin Films and van der Waals Heterostructures of Two-Dimensional Solids Smith, Amy R. Zulqurnain, Muhammad Mathieson, Angus G. M. Szablewski, Marek Hunt, Michael R. C. Materials Science Mesoscale and Nanoscale Physics Thin films and van der Waals heterostructures derived from two-dimensional solids offer enormous potential for a broad range of novel, energy efficient devices, however, their use is currently hampered by slow, labor-intensive fabrication methods often employing hazardous chemicals. We demonstrate a novel technique for rapid, low-cost and environmentally-friendly production of ultra-thin films and van der Waals heterostructures of two-dimensional solids from aqueous surfactant-stabilized suspensions, which we term `Liquid Interface Deposition'. Films are produced by the transfer of platelets of two-dimensional materials assembled at the interface between two immiscible liquids (water and dicholoromethane), at which surfactants which stabilize the two-dimensional materials in the aqueous phase are `stripped' from the platelets due to preferential partitioning of the surfactant to the non-aqeuous phase. The approach is generic to two-dimensional materials which can be stabilized in aqueous suspension by a surfactant and the resulting films can then be transferred to an arbitrary substrate by a range of approaches. The generic applicability of this technique is demonstrated through production of thin films on a variety of substrates, deposition of transparent, highly conductive, graphene films with conductivities between $7.7 \times 10^{3} - 1.26\times 10^{5}~\textrm{S m}^{-1}$ and transmittances of 55-75%, and by the fabrication of van der Waals heterostructures of MoS$_2$, WS$_2$, and few-layer graphene. |
| title | A Novel Liquid-Liquid Interface Deposition Method for the Production of Thin Films and van der Waals Heterostructures of Two-Dimensional Solids |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2411.05739 |