IMECH-IR  > 非线性力学国家重点实验室
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.
Source PublicationNANO LETTERS
2013-01-09
Volume13Issue:1Pages:26-30
ISSN1530-6984
AbstractBending 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.
KeywordBending Rigidity Gaussian Bending Stiffness Graphene Helfrich Hamiltonian Density Functional Theory
Subject Area固体力学
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000313142300005
Funding OrganizationChinese Academy of Sciences; MOST 973 of China [2012CB937500]; National Natural Science Foundation of China (NSFC) [11021262]; AFOSR [FA9550-11-1-0109]
DepartmentLNM微结构计算力学(筹)
Classification一类
Citation statistics
Cited Times:111[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47034
Collection非线性力学国家重点实验室
Corresponding AuthorWei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Recommended Citation
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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