Abstract
We describe the spontaneous wrinkling, saddling, and wedging of metallic, annular bilayer nanostructures driven by grain coalescence in one of the layers. Experiments revealed these different outcomes based on the dimensions of the annuli, and we find that the essential features are captured using finite element simulations of the plastic deformation in the metal bilayers. Our results show that the dimensions and nanomechanics associated with the plastic deformation of planar nanostructures can be important in forming complex three-dimensional nanostructures.
Original language | English (US) |
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Pages (from-to) | 5098-5102 |
Number of pages | 5 |
Journal | Nano Letters |
Volume | 10 |
Issue number | 12 |
DOIs | |
State | Published - Dec 8 2010 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Bioengineering
- General Chemistry
- General Materials Science
- Condensed Matter Physics
- Mechanical Engineering
Keywords
- Self-assembly
- buckling
- lithography
- nanomechanics
- self-folding