Mechanical properties of suspended graphene sheets

  title={Mechanical properties of suspended graphene sheets},
  author={Ian W. Frank and David M. Tanenbaum and Arend van der Zande and Paul L. McEuen},
  journal={Journal of Vacuum Science \& Technology B},
Using an atomic force microscope, we measured effective spring constants of stacks of graphene sheets (less than 5) suspended over photolithographically defined trenches in silicon dioxide. Measurements were made on layered graphene sheets of thicknesses between 2 and 8nm, with measured spring constants scaling as expected with the dimensions of the suspended section, ranging from 1to5N∕m. When our data are fitted to a model for doubly clamped beams under tension, we extract a Young’s modulus… 

Figures from this paper

Elastic properties of graphene suspended on a polymer substrate by e-beam exposure

A method for fabricating multiple free-standing structures on the same sheet of graphene is demonstrated. Mechanically exfoliated mono- and bilayer graphene sheets were sandwiched between two layers

Mechanical properties of rippled structure in suspended stacks of graphene

We studied the mechanical properties of a suspended graphene layers which have ripples with stripe pattern, by using an atomic force spectroscopy. The local spring constant of the rippled graphene

Effect of elastic deformation on frictional properties of few-layer graphene

We describe the results of Brownian dynamics (BD) simulations of an atomic force microscope (AFM) tip scanned on locally suspended few-layer graphene. The effects of surface compliance and sample

Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene

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.

Mechanical and Electrical Properties of Graphene Sheets

This thesis examines the electrical and mechanical properties of graphene sheets. We perform low temperature electrical transport measurements on gated, quasi-2D graphite quantum dots. In devices

In situ observation of electrostatic and thermal manipulation of suspended graphene membranes.

Graphene is nature's thinnest elastic membrane, and its morphology has important impacts on its electrical, mechanical, and electromechanical properties. Here we report manipulation of the morphology

Mechanical properties of single layer graphene nanoribbons through bending experimental simulations

Molecular Dynamics (MD) simulations of bending experiments have been carried out for graphene nanoribbons in order to measure their mechanical properties. Based on the continuum theory, one physical

Mapping the nanomechanical properties of graphene suspended on silica nanoparticles

ABSTRACT Using nanoparticles to impart extrinsic rippling in graphene is a relatively new method to induce strain and to tailor the properties of graphene. Here, we study the structure and elastic

Polymer‐free, low tension graphene mechanical resonators

Graphene resonators are fabricated using a polymer‐free, direct transfer method onto metal reinforced holey carbon grids. The resonators are distinguished by the absence of organic residues and



Electromechanical Resonators from Graphene Sheets

The thinnest resonator consists of a single suspended layer of atoms and represents the ultimate limit of two-dimensional nanoelectromechanical systems and is demonstrated down to 8 × 10–4 electrons per root hertz.

Measurement of the adhesion force between carbon nanotubes and a silicon dioxide substrate.

Carbon nanotube adhesion force measurements were performed on single-walled nanotubes grown over lithographically defined trenches and found that the tubes slipped at an axial tension of 10 nN after being selectively coated with a silicon dioxide layer.

Tuning carbon nanotube band gaps with strain.

Theoretical work predicts that band gap changes can range between +/-100 meV per 1% stretch, depending on NT chirality, and the measurements here are consistent with this predicted range.

Making graphene visible

Microfabrication of graphene devices used in many experimental studies currently relies on the fact that graphene crystallites can be visualized using optical microscopy if prepared on top of Si

Two-dimensional atomic crystals.

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.

Raman spectrum of graphene and graphene layers.

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.

Coulomb oscillations and Hall effect in quasi-2D graphite quantum dots.

It is demonstrated that electrons in mesoscopic graphite pieces are delocalized over nearly the whole graphite piece down to low temperatures.

Electrothermal tuning of Al–SiC nanomechanical resonators

A highly effective electrothermal tuning method is demonstrated for Al–SiC nanomechanical resonators. Doubly clamped beam devices are actuated and read out using a magnetomotive technique under a

Spatially resolved Raman spectroscopy of single- and few-layer graphene.

The D line intensity is investigated and no defects within the flake are found and a finite D line response originating from the edges can be attributed either to defects or to the breakdown of translational symmetry.