scholarly journals Casimir Force Acting on a Multilayer Graphene Sheet with Strong Diamagnetism

2019 ◽  
Vol 17 (0) ◽  
pp. 108-116
Author(s):  
Norio Inui
Keyword(s):  
Graphene Sheet ◽  
Casimir Force ◽  
Multilayer Graphene

Growth of ZnO nanorods on the surface and edges of a multilayer graphene sheet

2017 ◽  
Vol 139 ◽  
pp. 77-82 ◽  
Author(s):  
Faramarz Hossein-Babaei ◽  
Mehdi Akbari-Saatlu
Keyword(s):  
Graphene Sheet ◽  
Zno Nanorods ◽  
Multilayer Graphene

Multilayer Graphene Sheet with Conical Nanopores as a Membrane for High-Permeance Molecular Separation

2021 ◽  
Vol 125 (5) ◽  
pp. 3047-3054
Author(s):  
Chengzhen Sun ◽  
Runfeng Zhou ◽  
Bofeng Bai ◽  
Yuansheng Lin ◽  
Bangming Li
Keyword(s):  
Graphene Sheet ◽  
Multilayer Graphene ◽  
Molecular Separation ◽  
Conical Nanopores

A Method to Determine the Geometry-Dependent Bending Stiffness of Multilayer Graphene Sheets

2020 ◽  
Vol 88 (1) ◽  
Author(s):  
Xiaojie Ma ◽  
Luqi Liu ◽  
Zhong Zhang ◽  
Yueguang Wei
Keyword(s):  
Graphene Sheet ◽  
Cylindrical Surface ◽  
Complex Geometry ◽  
Lattice Structure ◽  
Stress Transfer ◽  
Quantitative Agreement ◽  
Bending Stiffness ◽  
Graphene Sheets ◽  
Multilayer Graphene ◽  
Trilayer Graphene

Abstract We consider how the bending stiffness of a multilayer graphene sheet relies on its bending geometry, including the in-plane length L and the curvature κ. We use an interlayer shear model to characterize the periodic interlayer tractions due to the lattice structure. The bending stiffness for the sheet bent along a cylindrical surface is extracted via an energetic consideration. Our discussion mainly focuses on trilayer sheets, particularly the complex geometry-dependency of their interlayer stress transfer behavior and the overall bending stiffness. We find that L and κ dominate the bending stiffness, respectively, in different stable regions. These results show good quantitative agreement with recent experiments where the stiffness was found to be a non-monotonic function of the bending angle (i.e., Lκ). Besides, for a given in-plane length, the trilayer graphene in the flat state (κ → 0) is found to have the maximum bending stiffness. According to our analytical solution to the flat state, the bending stiffness of trilayer graphene sheet can vary by two orders of magnitude. Furthermore, once multilayer graphene sheets are bent along a cylindrical surface with small curvature, the sheets perform similar characteristics. Though the discussion mainly focuses on the trilayer graphene, the theoretical framework presented here can be readily extended for various van der Waals materials beyond graphene of arbitrary layer numbers.

Flexural electromechanical properties of multilayer graphene sheet/carbon nanotube/vinyl ester hybrid nanocomposites

2020 ◽  
Vol 194 ◽  
pp. 108164 ◽  
Author(s):  
C.A. Sierra-Chi ◽  
H. Aguilar-Bolados ◽  
M.A. López-Manchado ◽  
R. Verdejo ◽  
J.V. Cauich-Rodríguez ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Graphene Sheet ◽  
Vinyl Ester ◽  
Hybrid Nanocomposites ◽  
Multilayer Graphene ◽  
Electromechanical Properties

Elastic properties of graphene-reinforced aluminum nanocomposite: Effects of temperature, stacked, and perforated graphene

2020 ◽  
Vol 234 (9) ◽  
pp. 1218-1227
Author(s):  
Ashish Kumar Srivastava ◽  
Vimal Kumar Pathak
Keyword(s):  
Graphene Sheet ◽  
Graphene Sheets ◽  
Marginal Effect ◽  
Multilayer Graphene ◽  
Plane Shear ◽  
Shear Moduli ◽  
Temperature Changes ◽  
Stiffness Properties ◽  
Out Of Plane ◽  
Dynamics Simulations

In this article, the elastic and shear moduli of the graphene sheet-reinforced aluminum nanocomposite have been investigated by molecular dynamics simulations. Different models have been simulated to study the effect of multilayer graphene sheet, perforation of GS, and temperature on the elastic and shear moduli of resulting nanocomposite. The simulation results show that the elastic and shear moduli of graphene sheet-reinforced aluminum are sensitive to the temperature changes, multilayer, and perforated graphene sheets. The temperature and perforation of graphene sheets exert adverse effects on the elastic and shear moduli of graphene sheet-reinforced aluminum nanocomposites. However, the multilayer graphene sheet leads to favorable effects on the stiffness properties of the nanocomposite. It is also observed that there is only a marginal effect of the chirality of graphene sheet on the out-of-plane shear moduli of the nanocomposite.

Casimir forces and vacuum energy

2017 ◽  
Author(s):  
Serge Reynaud ◽  
Astrid Lambrecht
Keyword(s):  
Casimir Force ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Thermal Fluctuations ◽  
Model Systems ◽  
Vacuum Field ◽  
Force Measurements ◽  
Casimir Forces ◽  
Current State ◽  
Field Fluctuations

The Casimir force is an effect of quantum vacuum field fluctuations, with applications in many domains of physics. The ideal expression obtained by Casimir, valid for perfect plane mirrors at zero temperature, has to be modified to take into account the effects of the optical properties of mirrors, thermal fluctuations, and geometry. After a general introduction to the Casimir force and a description of the current state of the art for Casimir force measurements and their comparison with theory, this chapter presents pedagogical treatments of the main features of the theory of Casimir forces for one-dimensional model systems and for mirrors in three-dimensional space.

scholarly journals Multilayer graphene supported flexible optoelectronic devices

2020 ◽  
Author(s):  
Vera Marinova ◽  
Stefan Petrov ◽  
Blagovest Napoleonov ◽  
Jordan Mickovski ◽  
Dimitrina Petrova ◽  
...  
Keyword(s):  
Optoelectronic Devices ◽  
Multilayer Graphene

scholarly journals Vertical monolithic integration of wide- and narrow-bandgap semiconductor nanostructures on graphene films

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Youngbin Tchoe ◽  
Janghyun Jo ◽  
HoSung Kim ◽  
Heehun Kim ◽  
Hyeonjun Baek ◽  
...  
Keyword(s):  
Graphene Film ◽  
Monolithic Integration ◽  
Hybrid Nanostructures ◽  
Dual Wavelength ◽  
Multilayer Graphene ◽  
Graphene Films ◽  
Transmission Electron ◽  
Zno Nanotubes ◽  
Metal Organic ◽  
Hybrid Configuration

AbstractWe report monolithic integration of indium arsenide (InAs) nanorods and zinc oxide (ZnO) nanotubes using a multilayer graphene film as a suspended substrate, and the fabrication of dual-wavelength photodetectors with the hybrid configuration of these materials. For the hybrid nanostructures, ZnO nanotubes and InAs nanorods were grown vertically on the top and bottom surfaces of the graphene films by metal-organic vapor-phase epitaxy and molecular beam epitaxy, respectively. The structural, optical, and electrical characteristics of the hybrid nanostructures were investigated using transmission electron microscopy, spectral photoresponse analysis, and current–voltage measurements. Furthermore, the hybrid nanostructures were used to fabricate dual-wavelength photodetectors sensitive to both ultraviolet and mid-infrared wavelengths.

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