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Ruoff, Rodney S.
Center for Multidimensional Carbon Materials (CMCM)
Research Interests
  • Next generation carbons, ultrathin sp3-bonded carbon sheets, negative curvature (‘Schwartzites’) carbons, sp3/sp2 hybrid carbon materials, model compounds for novel carbon materials, reaction mechanisms

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Fracture of polycrystalline graphene membranes by in situ nanoindentation in a scanning electron microscope

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Title
Fracture of polycrystalline graphene membranes by in situ nanoindentation in a scanning electron microscope
Author
Suk, Ji WonMancevski, VladimirHao, YufengLiechti, Kenneth M.Ruoff, Rodney S.
Issue Date
2015-10
Publisher
WILEY-V C H VERLAG GMBH
Citation
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, v.9, no.10, pp.564 - 569
Abstract
Failure of polycrystalline graphene grown by chemical vapor deposition was investigated by nanoindentation in a scanning electron microscope. Circular graphene membranes were subject to central point loads using a nanomanipulator combined with an atomic force microscope cantilever as a force sensor. The grain boundaries of the polycrystalline graphene were tope labeling technique. Graphene membranes without any grain boundary had a failure strength of 45.4 +/- 10.4 GPa, compared to 16.4 +/- 5.1 GPa for those with grain boundaries when a Young's modulus was assumed to be 1 TPa.
URI
https://scholarworks.unist.ac.kr/handle/201301/17697
URL
http://onlinelibrary.wiley.com/doi/10.1002/pssr.201510244/abstract
DOI
10.1002/pssr.201510244
ISSN
1862-6254
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CHM_Journal Papers
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