It is interesting to note that in the STM images of this single layer of graphite only three of the six carbon atoms in the graphite lattice are visible. This result cannot be accounted for by the usual explanation given in terms of inequivalent carbons atoms for the bulk graphite surface. ...
Imaging Grains and Grain Boundaries in Single-Layer Graphene: An Atomic Patchwork Quilt The properties of polycrystalline materials are often dominated by the size of their grains and by the atomic structure of their grain boundaries. These effects should be especially pronounced in 2D materials, wher...
We report the observation and characterization of field emission current from individual single- and few-layer graphene flakes laid on a flatSiO2/Sisubstrate. Measurements were performed in a scanning electron microscope chamber equipped with nanoprobes which allowed local measurement of the field emission...
We report on confocal Raman spectroscopy on a few-layer graphene flake. Adjacent single- and double-layer graphene sections allow mapping the transition in vibrational and electronic properties to a second stacked graphene sheet and with it a weak interlayer coupling. Most prominently the width of ...
Graphene-enhanced Raman scattering (GERS) on isotopically labelled bilayer and a single layer of pristine and partially hydrogenated graphene has been studied. The hydrogenated graphene sample showed a change in relative intensities of Raman bands of Rhodamine 6 G (R6G) with different vibrational en...
The present study takes a step towards the layer-controlled growth of graphite and other two-dimensional materials.This is a preview of subscription content, access via your institution Access optionsAccess Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access ...
The multi-layer two-dimensional(2-D) epsilon-negative (ENG), mu-negative (MNG) and double-negative (DNG) materials are investigated in this work. The unit cells consist of infinite dielectric cylinders of which the size and permittivity are chosen to excite the dominant electric and magnetic ...
Length-dependent thermal conductivity in suspended single-layer graphene. Nat Commun 2014; 5: 3689.X. Xu et al., Length-dependent thermal conductivity in... Xiangfan,Xu,Luiz,... - 《Nature Communications》 被引量: 192发表: 2014年 Superior thermal conductivity of single-layer graphene. We repo...
pulling the solid substrate up to allow at least part of the film of graphite oxide single layers to be in contact with a surface of the solid substrate such that the surface of the solid substrate is at least partially coated with a layer of graphite oxide single layers. In one embodiment...
Graphene is a single-atomic-layer material with excellent mechanical properties and has the potential to enhance the strength of composites. Its two-dimensional geometry, high intrinsic strength and modulus can effectively constrain dislocation motion, resulting in the significant strengthening of metals. ...