期刊
ACS NANO
卷 2, 期 12, 页码 2577-2584出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn800457s
关键词
graphene; nanocomposites; mechanical properties; bending modulus; atomic force microscopy; density functional theory
类别
资金
- National Science Foundation NIRT [CMS-0609049]
- NASA University Research, Engineering, and Technology Institute on BioInspired Materials (BIMat) [NCC-1-02037]
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.
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