Free folding of suspended graphene sheets by random mechanical stimulation

Jiong Zhang, Jianliang Xiao, Xianhong Meng, Carolyn Monroe, Yonggang Huang*, Jian Min Zuo

*Corresponding author for this work

Research output: Contribution to journalArticle

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Abstract

Graphene, like a sheet of paper, folds under mechanical forces. The stability of folded graphene, however, depends on the folding direction and the resulted graphene stacking. Suspended graphene in liquids folds freely under random ultrasonic stimulations. We determined the structure of ∼100 folded graphene edges by electron nanodiffraction. About 1/3 are armchair and 1/3 are zigzag. The results are explained by the energetics of graphene folding and atomic simulation. The zigzag edge has AB stacking, while in the armchair edge, AB stacking is achieved in some areas by a small twist.

Original languageEnglish (US)
Article number166805
JournalPhysical review letters
Volume104
Issue number16
DOIs
StatePublished - Apr 23 2010

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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