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Journal ArticleDOI

Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene

Changgu Lee, +4 more
- 18 Jul 2008 - 
- Vol. 321, Iss: 5887, pp 385-388
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.

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Graphene Schottky diodes: An experimental review of the rectifying graphene/semiconductor heterojunction

TL;DR: A review of the state-of-the art of the research on graphene/semiconductor junctions, the attempts towards a modeling and the most promising applications can be found in this article.
Journal ArticleDOI

Mechanically Flexible and Multifunctional Polymer‐Based Graphene Foams for Elastic Conductors and Oil‐Water Separators

TL;DR: Graphene foams fabricated by self-assembly of graphene sheets on a 3D polymer skeleton show excellent mechanical, electrical, and hydrophobic properties, thus holding great potential as elastic conductors and oil-water separators.
Journal ArticleDOI

Recent progress on flexible lithium rechargeable batteries

TL;DR: A number of designs for flexible lithium ion batteries have been reported in recent years; in this article, the authors focus on how flexibility can be introduced into each component of the battery, including active materials, electrolytes, separators, and current collectors.
Journal ArticleDOI

Solution processing of transparent conductors: from flask to film

TL;DR: This critical review focuses on the solution deposition of transparent conductors with a particular focus on transparent conducting oxide (TCO) thin-films, with an introduction into the applications of and material criteria for TCOs.
Journal ArticleDOI

Poly(vinyl alcohol) nanocomposites based on graphene and graphite oxide: a comparative investigation of property and mechanism

TL;DR: In this article, the properties and the mechanism for the property enhancements of polyvinyl alcohol (PVA) nanocomposites were investigated, and the role of the hydrogen bond between the graphene/GO nano-layers and PVA matrix was clarified.
References
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Journal ArticleDOI

Raman spectrum of graphene and graphene layers.

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

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

John F. Nye
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.
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