controlled ripple texturing of suspended graphene and

Determination of the Bending Rigidity of Graphene via Electrostatic Actuation of Buckled Membranes

Determination of the Bending Rigidity of Graphene via Electrostatic Actuation of Buckled Membranes Niklas Lindahl,†,# Daniel Midtvedt,‡,# Johannes Svensson, Oleg A. Nerushev,∥ Niclas Lindvall,⊥ Andreas Isacsson,‡ and Eleanor E. B. Campbell*,∥, †Department of Physics, University of Gothenburg, SE-41296 Gteborg, Sweden

Final Report Summary

Executive Summary:For graphene to become an integral material component in nanotechnology, developments on several levels in the My account Manage your account details Magazine subscription Receive every issue of Research*eu magazine Wire Publish your own articles on CORDIS

Bao, Wenzhong, et al., Nature nanotechnology 4.9 (2009): 562

Controlled Ripple Texturing of Suspended Graphene and Ultrathin Graphite Membranes Group 2 Reuven Birnbaum, Wei Chen, Guannan Chen History of Graphene • In 2004 Andre Geimand KostyaNovoselovat The University of Manchester extracted single‐atom‐thick

Controlled rippling of graphene via irradiation and applied strain

irradiation of suspended graphene membranes with 140 eV Ar ions for different values of the initial strain at 300 K. We focus on the nature of those defects produced by the irradiation as a function of the dose and applied strain, as well as the changes in the ripple

Facile characterization of ripple domains on exfoliated graphene

tic ripple structures were usually formed in supported13–18 and suspended graphene samples.19–21 We have shown this in a recent study of the friction properties of exfoliated graphene deposited on a SiO 2 substrate, where we discovered the ex-istence of

Configuration of ripple domains and their topological

Complex ripple domain structures are often observed in monolayer graphene sheets with wrinkled and folded edges, whereas a wrinkle- or fold-free monolayer graphene sheet only shows a single ripple domain (see Supplementary Figure S2 online) 15,16,17.

Wrinkled, rippled and crumpled graphene: an overview of formation mechanism, electronic properties, and applications

ripple formation resulting from the partially decoupled bend-ing and stretching modes [27,28]. The fact that free-suspended graphene is not strictly 2D was revealed by transmission electron microscopy (TEM) experiments, where suspended graphene

Graphene ripples as a realization of a two

GRAPHENE RIPPLES AS A REALIZATION OF A TWO- . . . PHYSICAL REVIEW B 91, 045413 (2015) FIG. 3. (Color online) (a) Dashed lines show the isothermal magnetization of a 2D Ising magnet vs field using a particular J, T, and ξ as labeled. Curves are

Controlled ripple texturing of suspended graphene and

2009/9/1Graphene is nature's thinnest elastic material and displays exceptional mechanical and electronic properties. Ripples are an intrinsic feature of graphene sheets and are expected to strongly influence electronic properties by inducing effective magnetic fields and changing local potentials. The ability to control ripple structure in graphene could allow device design based on local strain and

Controlling the ripple density and heights: a new way to

We report a new way to enhance the electrical performances of large area CVD-grown graphene through controlling the ripple density and heights after transfer onto SiO 2 /Si substrates by employing different cooling rates during fabrication. We find that graphene films prepared with a high cooling rate have reduced ripple density and heights and improved electrical characteristics such as

NANO LETTERS Raman Spectroscopy of Ripple Vol. xx, No. x Formation in Suspended Graphene

interesting properties.1-3 Ripple formation in suspended and on-substrate graphene has been demonstrated both experi-mentally4-6 and theoretically,7-9 though with much variation in character and orientation. Furthermore, these ripples have been shown to10,11

Ripple Texturing of Suspended Graphene Atomic Membranes

1 Ripple Texturing of Suspended Graphene Atomic Membranes Wenzhong Bao1, Feng Miao1, Zhen Chen2, Hang Zhang1, Wanyoung Jang2, Chris Dames2, Chun Ning Lau1* 1Department of Physics and Astronomy, University of California, Riverside, CA 92521 2Department of Mechanical Engineering, University of California, Riverside, CA 92521

Spin density waves in periodically strained graphene nanoribbons

reports of controlled texturing on graphene nanoribbons and membranes. Bao et al. reported the rst direct observation and controlled creation of one- and two-dimensional periodic ripples in suspended graphene sheets, using both spontane-ously and thermally9

Production of 3D‐shaped graphene via transfer printing

Production of 3D‐shaped graphene via transfer printing Sinad Winters 1,2, Toby Hallam and Georg S. Duesberg.1,2 1Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Ireland 2School of Chemistry, Trinity College Dublin, Ireland

Configuration of ripple domains and their topological

Complex ripple domain structures are often observed in monolayer graphene sheets with wrinkled and folded edges, whereas a wrinkle- or fold-free monolayer graphene sheet only shows a single ripple domain (see Supplementary Figure S2 online) 15,16,17.

The structure of suspended graphene sheets_

The structure of suspended graphene sheets The recent discovery of graphene has sparked significant interest, which has so far been focused on the peculiar electronic structure of this material, in which charge carriers mimic massless relativistic particle.

Recent experimental progress of fractional quantum Hall

The early 1/3 FQHE was found in suspended graphene devices at a temperature of 1.2 K and a magnetic field of 12 T, where the mobility reached 2.610 5 cm 2 /(Vs) []. Carrier mobility in suspended graphene can be of the order of 10 6 cm 2 /(Vs), comparable to some good-quality 2DEG in GaAs–AlGaAs heterostructure [ 208 ].

Controlled ripple texturing of suspended graphene and

The ability to control ripple structure in graphene could allow device design based on local strain and selective bandgap engineering. Here, we report the first direct observation and controlled creation of one- and two-dimensional periodic ripples in suspended graphene sheets, using both spontaneously and thermally generated strains.

Controlled rippling of graphene via irradiation and

This study presents molecular dynamics simulations of the irradiation of suspended graphene membranes with 140 eV Ar ions for different values of the initial strain at 300 K. We focus on the nature of those defects produced by the irradiation as a function of the dose and applied strain, as well as the changes in the ripple distribution and roughness.

Frontiers

Graphene has outstanding properties that make it an auspicious material for many applications. This work presents the production of graphene oxide (GO) via the Langmuir—Blodgett process and the subsequent restoration of single layer graphene flakes (SLGF) via the chemical reduction, and thermal annealing of the GO. Scanning electron microscopy (SEM) and optical images were used to evaluate

Spin density waves in periodically strained graphene nanoribbons

reports of controlled texturing on graphene nanoribbons and membranes. Bao et al. reported the rst direct observation and controlled creation of one- and two-dimensional periodic ripples in suspended graphene sheets, using both spontane-ously and thermally9

Transport Properties of Rippled Graphene

ansprTort Properties of Rippled Graphene 1247 included naturally by using the Slater Koster form of the Hamiltonian, and the scaling of the hopping constant, i.e. two of the e ects described above. The presence of the ripples does not change, energy-wise, the

Biaxial Compressive Strain Engineering in Graphene/Boron

Bao W. et al. Controlled ripple texturing of suspended graphene and ultrathin graphite membranes. Nat. Nanotechnol 4, 562–566 (2009). [] Yoon D., Son Y.-W. Cheong H. Negative thermal expansion coefficient of graphene measured by Raman spectroscopy. []

Mechanics Interpretation on the Bending Stiffness and

As for the first question, it is found that the repulsive residual internal moment in the bond angle can lead to a nonzero bending stiffness, which makes the graphene flat. Together with long-range attraction among atoms, such as van der Waals forces, a graphene prefers to have a self-buckling wrinkled configuration with many waves.

Electronic and transport properties of kinked graphene

graphene nanoribbons corresponding to a width of ≈1.4 nm can be formed in graphene on a step-patterned SiC substrate. The substrate interactions can clamp a graphene sheet while partly suspended across small holes, so that a pressure difference

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