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
An overview of the applications of graphene-based materials in supercapacitors.
TL;DR: Several key issues for improving the structure of graphene-based materials and for achieving better capacitor performance, along with the current outlook for the field are discussed.
Journal ArticleDOI
Raman spectroscopy of graphene-based materials and its applications in related devices.
TL;DR: The essential Raman scattering processes of the entire first- and second-order modes in intrinsic graphene are described and the extensive capabilities of Raman spectroscopy for the investigation of the fundamental properties of graphene under external perturbations are described.
Journal ArticleDOI
Graphene nanosheet: synthesis, molecular engineering, thin film, hybrids, and energy and analytical applications
Shaojun Guo,Shaojun Dong +1 more
TL;DR: This critical review, from the viewpoint of chemistry and materials, will cover recent significant advances in synthesis, molecular engineering, thin film, hybrids, and energy and analytical applications of the "star-material" GN together with discussion on its major challenges and opportunities for future GN research.
Journal ArticleDOI
A review on mechanical exfoliation for the scalable production of graphene
Min Yi,Min Yi,Zhigang Shen +2 more
TL;DR: In this paper, the authors highlight the recent progress on mechanical exfoliation for graphene production during the last decade, focusing on the widely used sonication method with the latest insight into sonication-induced defects, newly explored ball milling method, the fluid dynamics method that has emerged in the last three years, and the innovative supercritical fluid method.
Journal ArticleDOI
Fluorographene: A Two‐Dimensional Counterpart of Teflon
Rahul R. Nair,Wencai Ren,Rashid Jalil,Ibtsam Riaz,Vasyl G. Kravets,L. Britnell,Peter Blake,Fredrik Schedin,A. S. Mayorov,Shengjun Yuan,Mikhail I. Katsnelson,Hui-Ming Cheng,Wlodek Strupinski,Lyubov G. Bulusheva,Alexander V. Okotrub,Irina V. Grigorieva,Alexander N. Grigorenko,Kostya S. Novoselov,Andre K. Geim +18 more
TL;DR: F fluorographene is a high-quality insulator that inherits the mechanical strength of graphene, exhibiting a Young's modulus of 100 N m(-1) and sustaining strains of 15%.
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.