Abstract
We probe the bending characteristics of functionalized graphene sheets with the tip of an atomic force microscope. Individual sheets are transformed from a flat into a folded configuration. Sheets can be reversibly folded and unfolded multiple times, and the folding always occurs at the same location. This observation suggests that the folding and bending behavior of the sheets is dominated by pre-existing kink (or even fault) lines consisting of defects and/or functional groups.
Original language | English (US) |
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Pages (from-to) | 2577-2584 |
Number of pages | 8 |
Journal | ACS Nano |
Volume | 2 |
Issue number | 12 |
DOIs | |
State | Published - Dec 23 2008 |
All Science Journal Classification (ASJC) codes
- General Engineering
- General Materials Science
- General Physics and Astronomy
Keywords
- Atomic force microscopy
- Bending modulus
- Density functional theory
- Graphene
- Mechanical properties
- Nanocomposites