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
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Journal ArticleDOI
Mechanical properties of graphene under shear deformation
K. Min,Narayana R. Aluru +1 more
TL;DR: In this article, the authors investigated the mechanical properties of graphene under shear deformation using molecular dynamics simulations and showed that the wrinkling behavior of graphene can be significant and proposed an analytical theory based on the kinetic analysis to predict shear strength and fracture shear strain.
Journal ArticleDOI
X-ray photoelectron spectroscopy of graphitic carbon nanomaterials doped with heteroatoms.
TL;DR: A practical guide for interpreting X-ray photoelectron spectra of doped graphitic carbon nanomaterials, and a reference for their binding energies that are vital for compositional analysis via XPS are provided.
Journal ArticleDOI
Two-dimensional halide perovskite nanomaterials and heterostructures
TL;DR: The synthesis and characterization of 2D halide perovskite nanostructures, the interface of the 2D HALs with other 2D materials, and the integration of them into high-performance optoelectronic devices including solar cells, photodetectors, transistors, and memory devices are currently under investigation are reviewed.
Journal ArticleDOI
Novel effects of strains in graphene and other two dimensional materials
B. Amorim,B. Amorim,Alberto Cortijo,F. de Juan,F. de Juan,Adolfo G. Grushin,Francisco Guinea,Francisco Guinea,Francisco Guinea,A. Gutierrez-Rubio,Hector Ochoa,Hector Ochoa,Vincenzo Parente,Vincenzo Parente,Rafael Roldán,Pablo San-Jose,Jürgen Schiefele,Mauricio Sturla,María A. H. Vozmediano +18 more
TL;DR: In this paper, the role of strains in the structural and electronic properties of graphene and other two-dimensional compounds is discussed. But, the influence of strains on these properties was not considered before, such as electronic transport, spin-orbit coupling, the formation of Moire patterns and optics.
Journal ArticleDOI
Graphene polyimide nanocomposites; thermal, mechanical, and high-temperature shape memory effects.
Mitra Yoonessi,Ying Shi,Daniel A. Scheiman,Marisabel Lebron-Colon,Dean M. Tigelaar,Robert Weiss,Michael A. Meador +6 more
TL;DR: Flexible graphene polyimide nanocomposites with superior mechanical properties over those of neatpolyimide resin have been prepared by solution blending and exhibited excellent compatibility with N-methyl-2-pyrrolidone.
References
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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.