2012 Fiscal Year Final Research Report
Creation of Flexible Nano-Materials
| Project/Area Number |
23656088
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Osaka University |
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Principal Investigator |
MINOSHIMA Kohji 大阪大学, 大学院・工学研究科, 教授 (50174107)
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| Co-Investigator(Kenkyū-buntansha) |
HIRAKATA Hiroyuki 大阪大学, 大学院・工学研究科, 准教授 (40362454)
YONEZU Akio 中央大学, 理工学部, 准教授 (40398566)
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| Project Period (FY) |
2011 – 2012
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| Keywords | マイクロ材料力学 / ナノ薄膜 / 薄膜創成 / 自己組職化 |
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| Research Abstract |
In this study, we developed a technique for creating freestanding structured nano-films with desirable deformability by a mechanical self-assembly using a buckling phenomenon. Various wrinkled structures such as stripe and labyrinth patterns, and a nonsymmetrical buckling structure are formed on the surface of a sacrificial resin layer by applying independent biaxial compressive strains. By removing the sacrificial layer with a solvent, freestanding wrinkled films are created. The mechanical properties of the films can be controlled by the wrinkle structures: e.g., the stripe structure has extremely high deformability, having more than 10% fracture strain.
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