Knitted graphene-nanoribbon sheet: a mechanically robust structure

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	Knitted graphene-nanoribbon sheet: a mechanically robust structure
	Wei, Ning ; Fan, Zheyong ; Xu, Lan-Qing ; Zheng, Yong-Ping ; Wang, Hui-Qiong ; Zheng, Jin-Cheng ; Wang HQ(王惠琼)
刊名	http://dx.doi.org/10.1039/c1nr11200g
	2012
关键词	MOLECULAR-DYNAMICS CARBON NANOTUBES ELASTIC PROPERTIES FILMS STRENGTH FRACTURE DEFECTS
英文摘要	Specialized Research Fund for the Doctoral Program of Higher Education [20090121120028, 20100121120026]; Natural Science Foundation of Fujian Province, China [2009J01015, 2010J05138]; Program for New Century Excellent Talents in University (NCET) [NCET-09-0680]; In this paper, a new nanostructure is proposed, namely, the knitted graphene-nanoribbon sheet (KGS), which consists of zigzag and/or armchair graphene nanoribbons. The knitting technology is introduced to graphene nanotechnology to produce large area graphene sheets. Compared with pristine graphene, the chirality of a knitted graphene-nanoribbon sheet is much more flexible and can be designed on demand. The mechanical properties of KGSs are investigated by molecular dynamics simulations, including the effect of vacancies. With hydrogen atoms saturating the ribbon edges, the structure (KGS + H) is found to be of significant mechanical robustness, whose fracture does not rely on the critical bonds. The fracture strain of KGS + H remains nearly unchanged as long as there remains a single defect-free graphene nanoribbon in the tensile direction. This graphene nano knitting technique is experimentally feasible, inspired by a recent demonstration by Fournier et al. [Phys. Rev. B, 2011, 84, 035435] of lifting a single molecular wire using a combined frequency-modulated atomic force and tunnelling microscope.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/69656]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Wei, Ning,Fan, Zheyong,Xu, Lan-Qing,et al. Knitted graphene-nanoribbon sheet: a mechanically robust structure[J]. http://dx.doi.org/10.1039/c1nr11200g,2012.
APA	Wei, Ning.,Fan, Zheyong.,Xu, Lan-Qing.,Zheng, Yong-Ping.,Wang, Hui-Qiong.,...&王惠琼.(2012).Knitted graphene-nanoribbon sheet: a mechanically robust structure.http://dx.doi.org/10.1039/c1nr11200g.
MLA	Wei, Ning,et al."Knitted graphene-nanoribbon sheet: a mechanically robust structure".http://dx.doi.org/10.1039/c1nr11200g (2012).