Direct Visualization and Manipulation of Stacking Orders in Few-Layer Graphene by Dynamic Atomic Force Microscopy

2021 ◽  
pp. 7328-7334
Author(s):  
Hongjian Wu ◽  
Xiaoxiang Yu ◽  
Mengjian Zhu ◽  
Zhihong Zhu ◽  
Jianyu Zhang ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Direct Visualization ◽  
Force Microscopy ◽  
Layer Graphene ◽  
Atomic Force ◽  
Few Layer Graphene

Direct Visualization of KirBac3.1 Potassium Channel Gating by Atomic Force Microscopy

2007 ◽  
Vol 374 (2) ◽  
pp. 500-505 ◽  
Author(s):  
Szymon Jarosławski ◽  
Brittany Zadek ◽  
Frances Ashcroft ◽  
Catherine Vénien-Bryan ◽  
Simon Scheuring
Keyword(s):  
Atomic Force Microscopy ◽  
Potassium Channel ◽  
Channel Gating ◽  
Direct Visualization ◽  
Force Microscopy ◽  
Atomic Force ◽  
Potassium Channel Gating

scholarly journals Growth of Ordered Graphene Ribbons by Sublimation Epitaxy

Crystals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 449
Author(s):  
Shuxian Cai ◽  
Xingfang Liu ◽  
Xin Zheng ◽  
Zhonghua Liu
Keyword(s):  
Substrate Surface ◽  
Graphene Film ◽  
Graphene Ribbon ◽  
High Quality ◽  
Graphene Layers ◽  
Force Microscopy ◽  
Layer Graphene ◽  
Micro Raman Spectroscopy ◽  
Atomic Force ◽  
Few Layer Graphene

Ordered graphene ribbons were grown on the surface of 4° off-axis 4H-SiC wafers by sublimation epitaxy, and characterized by using scanning electron microscopy (SEM), atomic force microscopy (AFM) and micro-Raman spectroscopy (μ-Raman). SEM showed that there were gray and dark ribbons on the substrate surface, and AFM further revealed that these ordered graphene ribbons had clear stepped morphologies due to surface step-bunching. It was shown by μ-Raman that the numbers of graphene layers of these two types of regions were different. The gray region was composed of mono- or bilayer ordered graphene ribbon, while the dark region was of tri- or few-layer ribbon. Meanwhile, ribbons were all homogeneous and had a width up to 40 μm and a length up to 1000 μm, without micro defects such as grain boundaries, ridges, or mono- and few-layer graphene mixtures. The results of this study are useful for optimized growth of high-quality graphene film on silicon carbide crystal.

scholarly journals Direct visualization of the native structure of viroid RNAs at single-molecule resolution by atomic force microscopy

RNA Biology ◽  
2019 ◽  
Vol 16 (3) ◽  
pp. 295-308 ◽  
Author(s):  
M. Moreno ◽  
L. Vázquez ◽  
A. López-Carrasco ◽  
J.A. Martín-Gago ◽  
R. Flores ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Single Molecule ◽  
Direct Visualization ◽  
Native Structure ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Direct visualization of polypeptide shell of ferritin molecule by atomic force microscopy

1993 ◽  
Vol 65 (2) ◽  
pp. 573-577 ◽  
Author(s):  
S. Ohnishi ◽  
M. Hara ◽  
T. Furuno ◽  
T. Okada ◽  
H. Sasabe
Keyword(s):  
Atomic Force Microscopy ◽  
Direct Visualization ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Preparation of Colloidal Dispersions of Graphene Sheets in Organic Solvents by Using Ball Milling

2010 ◽  
Vol 2010 ◽  
pp. 1-5 ◽  
Author(s):  
Weifeng Zhao ◽  
Furong Wu ◽  
Hang Wu ◽  
Guohua Chen
Keyword(s):  
Organic Solvents ◽  
Colloidal Suspension ◽  
Colloidal Dispersions ◽  
Graphene Sheets ◽  
Graphite Nanosheets ◽  
Force Microscopy ◽  
Layer Graphene ◽  
Atomic Force ◽  
Transmission Electron ◽  
Few Layer Graphene

A top-down method was developed for producing colloidal dispersions of graphene sheets. Graphite nanosheets comprising hundreds of carbon layers were dispersed and gently ball-milled to exfoliate into graphene in a variety of organic solvents. After 30 hours of the shear-force-dominated grinding and a subsequent 4000 r.p.m. of centrifugation, single- and few-layer graphene sheets were readily prepared and homogeneously and stably suspended in the good solvent medium which possesses a surface tension value close to 40 mJm−2, such as inN,N-dimethylformamide, at a concentration up to 0.08 mg ml−1, achieving a yield higher than 32.0 wt%. The graphene materials in the colloidal suspension were characterized using scanning and transmission electron microscopy and atomic force microscopy.

Direct Visualization of the Enzymatic Digestion of a Single Fiber of Native Cellulose in an Aqueous Environment by Atomic Force Microscopy

Langmuir ◽  
2010 ◽  
Vol 26 (7) ◽  
pp. 5007-5013 ◽  
Author(s):  
Amanda Quirk ◽  
Jacek Lipkowski ◽  
Chris Vandenende ◽  
Darrell Cockburn ◽  
Anthony J. Clarke ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Enzymatic Digestion ◽  
Single Fiber ◽  
Aqueous Environment ◽  
Direct Visualization ◽  
Force Microscopy ◽  
Native Cellulose ◽  
Atomic Force

Solid Phase Growth of Graphene on Silicon Carbide by Nickel Silicidation: Graphene Formation Mechanisms

2014 ◽  
Vol 778-780 ◽  
pp. 1162-1165
Author(s):  
Enrique Escobedo-Cousin ◽  
Konstantin Vassilevski ◽  
Toby Hopf ◽  
Nicholas Wright ◽  
Anthony G. O'Neill ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Solid Phase ◽  
Formation Mechanisms ◽  
Layer By Layer ◽  
Phase Growth ◽  
Force Microscopy ◽  
Layer Graphene ◽  
Atomic Force ◽  
High Temperature Stage ◽  
Few Layer Graphene

This work presents experimental evidence of the formation mechanisms of few-layer graphene (FLG) films on SiC by nickel silicidation. FLG is formed by annealing of a 40 nm thick Ni layer on 6H-SiC at 1035ºC for 60 s, resulting in a Ni2Si layer which may be capped by any Ni that did not react during annealing. It has been proposed that FLG forms on top of the Ni during the high temperature stage. In contrast, during cooling, carbon atoms which were released during the silicidation reaction may diffuse back towards the Ni2Si/SiC interface to form a second FLG film. After annealing, layer-by-layer de-processing was carried out in order to unequivocally identify the FLG at each location using Atomic force microscopy (AFM) and Raman spectroscopy.

Sign in / Sign up

Export Citation Format

Share Document