Bending rigidity and Gaussian bending stiffness of single-layered graphene

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	Bending rigidity and Gaussian bending stiffness of single-layered graphene
	Wei YJ(魏宇杰); Wang BL(王宝林); Wu JT(吴江涛); Yang RG; Dunn ML; Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
发表期刊	NANO LETTERS
	2013-01-09
卷号	13 期号:1 页码:26-30
ISSN	1530-6984
摘要	Bending rigidity and Gaussian bending stiffness are the two key parameters that govern the rippling of suspended graphene-an unavoidable phenomenon of two-dimensional materials when subject to a thermal or mechanical field. A reliable determination about these two parameters is of significance for both the design and the manipulation of graphene morphology for engineering applications. By combining the density functional theory calculations of energies of fullerenes and single wall carbon nanotubes with the configurational energy of membranes determined by Helfrich Hamiltonian, we have designed a theoretical approach to accurately determine the bending rigidity and Gaussian bending stiffness of single-layered graphene. The bending rigidity and Gaussian bending stiffness of single-layered graphene are 1.44 eV (2.31 x 10(-19) N m) and -1.52 eV (2.43 x 10(-19) N m), respectively. The bending rigidity is close to the experimental result. Interestingly, the bending stiffness of graphene is close to that of lipid bilayers of cells about 1-2 eV, which might mechanically justify biological applications of graphene.
关键词	Bending Rigidity Gaussian Bending Stiffness Graphene Helfrich Hamiltonian Density Functional Theory
学科领域	固体力学
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000313142300005
项目资助者	Chinese Academy of Sciences; MOST 973 of China [2012CB937500]; National Natural Science Foundation of China (NSFC) [11021262]; AFOSR [FA9550-11-1-0109]
课题组名称	LNM微结构计算力学（筹）
论文分区	一类
引用统计	被引频次：263[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/47034
专题	非线性力学国家重点实验室
通讯作者	Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Wei YJ,Wang BL,Wu JT,et al. Bending rigidity and Gaussian bending stiffness of single-layered graphene[J]. NANO LETTERS,2013,13,1,:26-30.
APA	魏宇杰,王宝林,吴江涛,Yang RG,Dunn ML,&Wei, YJ .(2013).Bending rigidity and Gaussian bending stiffness of single-layered graphene.NANO LETTERS,13(1),26-30.
MLA	魏宇杰,et al."Bending rigidity and Gaussian bending stiffness of single-layered graphene".NANO LETTERS 13.1(2013):26-30.

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