| 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.
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| Source Publication | NANO LETTERS
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| 2013-01-09 | |
| Volume | 13Issue:1Pages:26-30 |
| ISSN | 1530-6984 |
| Abstract | 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. |
| Keyword | Bending Rigidity Gaussian Bending Stiffness Graphene Helfrich Hamiltonian Density Functional Theory |
| Subject Area | 固体力学 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000313142300005 |
| Funding Organization | Chinese Academy of Sciences; MOST 973 of China [2012CB937500]; National Natural Science Foundation of China (NSFC) [11021262]; AFOSR [FA9550-11-1-0109] |
| Department | LNM微结构计算力学（筹） |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/47034 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Wei, 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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