Designing the Bending Stiffness of 2D Material Heterostructures
| Autor: | Takashi Taniguchi, Arend M. van der Zande, Kenji Watanabe, M. Abir Hossain, Elif Ertekin, Edmund Han, Pinshane Y. Huang, Jaehyung Yu |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Mechanical Engineering Heterojunction 02 engineering and technology Bending Orders of magnitude (numbers) Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Condensed Matter::Materials Science Stack (abstract data type) Mechanics of Materials Bending stiffness Monolayer General Materials Science Composite material 0210 nano-technology Interfacial engineering Layer (electronics) |
| Zdroj: | Advanced Materials. 33:2007269 |
| ISSN: | 1521-4095 0935-9648 |
| Popis: | 2D monolayers represent some of the most deformable inorganic materials, with bending stiffnesses approaching those of lipid bilayers. Achieving 2D heterostructures with similar properties would enable a new class of deformable devices orders of magnitude softer than conventional thin-film electronics. Here, by systematically introducing low-friction twisted or heterointerfaces, interfacial engineering is leveraged to tailor the bending stiffness of 2D heterostructures over several hundred percent. A bending model is developed and experimentally validated to predict and design the deformability of 2D heterostructures and how it evolves with the composition of the stack, the atomic arrangements at the interfaces, and the geometry of the structure. Notably, when each atomic layer is separated by heterointerfaces, the total bending stiffness reaches a theoretical minimum, equal to the sum of the constituent layers regardless of scale of deformation-lending the extreme deformability of 2D monolayers to device-compatible multilayers. |
| Databáze: | OpenAIRE |
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