Journal ArticleDOI
Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
TLDR
Graphene is established as the strongest material ever measured, and atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.Abstract:
We measured the elastic properties and intrinsic breaking strength of free-standing monolayer graphene membranes by nanoindentation in an atomic force microscope. The force-displacement behavior is interpreted within a framework of nonlinear elastic stress-strain response, and yields second- and third-order elastic stiffnesses of 340 newtons per meter (N m(-1)) and -690 Nm(-1), respectively. The breaking strength is 42 N m(-1) and represents the intrinsic strength of a defect-free sheet. These quantities correspond to a Young's modulus of E = 1.0 terapascals, third-order elastic stiffness of D = -2.0 terapascals, and intrinsic strength of sigma(int) = 130 gigapascals for bulk graphite. These experiments establish graphene as the strongest material ever measured, and show that atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.read more
Citations
More filters
Journal ArticleDOI
Graphene-based materials for catalysis
TL;DR: Graphene is one of the most promising materials in nanotechnology and from a theoretical point of view, it provides the ultimate two-dimensional model of a catalytic support as mentioned in this paper, and some promising results have already been obtained with few-layer graphene.
Journal ArticleDOI
Electronic transport in polycrystalline graphene
TL;DR: This work develops a theory of charge carrier transmission through grain boundaries composed of a periodic array of dislocations in graphene based on the momentum conservation principle and sheds light on the transport properties of large-area graphene samples.
Journal ArticleDOI
Functionalized hexagonal boron nitride nanomaterials: emerging properties and applications.
TL;DR: An overview of the progress in functionalized hexagonal boron nitride (h-BN) nanomaterials can be found in this paper, where different functionalization methods, including physical and chemical routes, are comprehensively described toward fabrication of various BN derivatives, hetero- and porous structures, etc.
Journal ArticleDOI
A review on mechanics and mechanical properties of 2D materials—Graphene and beyond
Deji Akinwande,Christopher J. Brennan,J. Scott Bunch,Philip Egberts,Jonathan R. Felts,Huajian Gao,Rui Huang,Joon-Seok Kim,Teng Li,Yao Li,Kenneth M. Liechti,Nanshu Lu,Harold S. Park,Evan J. Reed,Peng Wang,Boris I. Yakobson,Teng Zhang,Yong-Wei Zhang,Yao Zhou,Yong Zhu +19 more
TL;DR: A review of recent theoretical and experimental works related to mechanics and mechanical properties of 2D materials can be found in this article, where the authors show that there is a continual growth of interest in the mechanics of other two-dimensional materials beyond graphene.
Journal ArticleDOI
Graphene for Controlled and Accelerated Osteogenic Differentiation of Human Mesenchymal Stem Cells
Tapas R. Nayak,Henrik Andersen,Venkata S. Makam,Clement Khaw,Sukang Bae,Xiangfan Xu,Pui Lai Rachel Ee,Jong Hyun Ahn,Byung Hee Hong,Giorgia Pastorin,Giorgia Pastorin,Barbaros Özyilmaz,Barbaros Özyilmaz +12 more
TL;DR: It is shown that graphene provides a promising biocompatible scaffold that does not hamper the proliferation of human mesenchymal stem cells and accelerates their specific differentiation into bone cells, demonstrating graphene's potential for stem cell research.
References
More filters
Journal ArticleDOI
Raman spectrum of graphene and graphene layers.
Andrea C. Ferrari,Jannik C. Meyer,Vittorio Scardaci,Cinzia Casiraghi,Michele Lazzeri,Francesco Mauri,S. Piscanec,Da Jiang,K. S. Novoselov,S. Roth,A. K. Geim +10 more
TL;DR: This work shows that graphene's electronic structure is captured in its Raman spectrum that clearly evolves with the number of layers, and allows unambiguous, high-throughput, nondestructive identification of graphene layers, which is critically lacking in this emerging research area.
Journal ArticleDOI
Two-dimensional atomic crystals
Kostya S. Novoselov,Da Jiang,Fred Schedin,Timothy J. Booth,V. V. Khotkevich,Sergey V. Morozov,Andre K. Geim +6 more
TL;DR: By using micromechanical cleavage, a variety of 2D crystals including single layers of boron nitride, graphite, several dichalcogenides, and complex oxides are prepared and studied.
Journal ArticleDOI
The Phenomena of Rupture and Flow in Solids
TL;DR: In this article, the authors investigated the effect of surface scratches on the mechanical strength of solids, and some general conclusions were reached which appear to have a direct bearing on the problem of rupture, from an engineering standpoint, and also on the larger question of the nature of intermolecular cohesion.
Book
Physical properties of crystals
TL;DR: In this paper, the physical properties of crystals systematically in tensor notation are presented, presenting tensor properties in terms of their common mathematical basis and the thermodynamic relations between them.
Journal ArticleDOI
Strength and breaking mechanism of multiwalled carbon nanotubes under tensile load
TL;DR: The tensile strengths of individual multiwalled carbon nanotubes (MWCNTs) were measured with a "nanostressing stage" located within a scanning electron microscope and a variety of structures were revealed, such as a nanotube ribbon, a wave pattern, and partial radial collapse.