Related Researcher

Author's Photo

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

Folding and Fracture of Single-Crystal Graphene Grown on a Cu(111) Foil

Cited 0 times inthomson ciCited 0 times inthomson ci
Folding and Fracture of Single-Crystal Graphene Grown on a Cu(111) Foil
Luo, DaChoe, MyeonggiBizao, Rafael A.Wang, MeihuiSu, HaishengHuang, MingJin, SunghwanLi, YunqingKim, MinhyeokPugno, Nicola M.Ren, BinLee, ZonghoonRuoff, Rodney S.
Issue Date
WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
ADVANCED MATERIALS, v.34, no.15, pp.2110509
A single-crystal graphene film grown on a Cu(111) foil by chemical vapor deposition (CVD) has ribbon-like fold structures. These graphene folds are highly oriented and essentially parallel to each other. Cu surface steps underneath the graphene are along the and directions, leading to the formation of the arrays of folds. The folds in the single-layer graphene (SLG) are not continuous but break up into alternating patterns. A "joint" (an AB-stacked bilayer graphene) region connects two neighboring alternating regions, and the breaks are always along zigzag or armchair directions. Folds formed in bilayer or few-layer graphene are continuous with no breaks. Molecular dynamics simulations show that SLG suffers a significantly higher compressive stress compared to bilayer graphene when both are under the same compression, thus leading to the rupture of SLG in these fold regions. The fracture strength of a CVD-grown single-crystal SLG film is simulated to be about 70 GPa. This study greatly deepens the understanding of the mechanics of CVD-grown single-crystal graphene and such folds, and sheds light on the fabrication of various graphene origami/kirigami structures by substrate engineering. Such oriented folds can be used in a variety of further studies.
Appears in Collections:
MSE_Journal Papers
CHM_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record


  • mendeley


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.