In Situ Chemical Functionalization of a Single Carbon Nanotube Functionalized AFM Tip using a Correlated Optical and Atomic Force Microscope

2011 ◽  
Vol 1318 ◽  
Author(s):  
Ifat Kaplan-Ashiri ◽  
Eric J. Titus ◽  
Katherine A. Willets
Keyword(s):  
Carbon Nanotube ◽  
Atomic Force Microscope ◽  
Spectroscopic Characterization ◽  
Optical Microscope ◽  
Multiwalled Carbon ◽  
Atomic Force ◽  
Before And After ◽  
Afm Probe

ABSTRACTWe present a method for performing nanoscale wet chemistry on single carbon nanotubes as well as spectroscopic characterization of the functionalized molecules using a coupled atomic force microscope (AFM) and optical microscope. An AFM probe was functionalized with a single multiwalled carbon nanotube and then locally oxidized by dipping it into nitric acid (HNO3) in situ using AFM manipulation. Raman scattering was collected from the carbon nanotube functionalized probe before and after the oxidation reaction. An increase in the Raman D band was observed after the acid treatment, demonstrating that oxidation had occurred. This is the first step towards developing a real-time technique for dynamic studies of chemical reactions on single nanoparticles/molecules.

Anin situatomic force microscope for normal-incidence nanofocus X-ray experiments

2016 ◽  
Vol 23 (5) ◽  
pp. 1110-1117 ◽  
Author(s):  
M. V. Vitorino ◽  
Y. Fuchs ◽  
T. Dane ◽  
M. S. Rodrigues ◽  
M. Rosenthal ◽  
...  
Keyword(s):  
Thin Film ◽  
Atomic Force Microscope ◽  
High Speed ◽  
Normal Incidence ◽  
Organic Thin Film ◽  
X Ray ◽  
Atomic Force ◽  
Synchrotron Beamlines

A compact high-speed X-ray atomic force microscope has been developed forin situuse in normal-incidence X-ray experiments on synchrotron beamlines, allowing for simultaneous characterization of samples in direct space with nanometric lateral resolution while employing nanofocused X-ray beams. In the present work the instrument is used to observe radiation damage effects produced by an intense X-ray nanobeam on a semiconducting organic thin film. The formation of micrometric holes induced by the beam occurring on a timescale of seconds is characterized.

Carbon Nanotube as Probe for Atomic Force Microscope

2006 ◽  
Vol 315-316 ◽  
pp. 758-761
Author(s):  
Zong Wei Xu ◽  
Ying Chun Liang ◽  
Shen Dong ◽  
Li Qiang Gu ◽  
T. Sun ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Aspect Ratio ◽  
Atomic Force Microscope ◽  
Arc Welding ◽  
Metal Film ◽  
Optical Microscope ◽  
Fabrication Method ◽  
Easy Method ◽  
Atomic Force ◽  
Direct View

An improved arc welding method was developed to fabricate carbon nanotube probe under direct view of optical microscope. The new fabrication method here needs not coat silicon probe in advance with metal film, which greatly reduces the fabrication’s difficulty. An easy method for shortening the nanotube probe was also developed. The improved fabrication method here is simple and reliable. The fabricated carbon nanotube probe showed good properties of higher length-to-diameter aspect ratio, better wear characteristics than silicon probe.

scholarly journals Elucidating Structure Property of Polyethylene/CNT Nanocomposite by in situ SFM Deformation Tests

1970 ◽  
Vol 26 ◽  
pp. 22-30
Author(s):  
Rameshwor Adhikari ◽  
Reinhold Godehardt ◽  
Werner Lebek ◽  
Goerg H. Michler ◽  
Petra Potschke
Keyword(s):  
Carbon Nanotube ◽  
Deformation Mechanism ◽  
Deformation Behavior ◽  
Structural Changes ◽  
Optical Microscope ◽  
Structure Property ◽  
Multiwalled Carbon ◽  
Deformation Tests ◽  
In Situ Deformation

Deformation behavior of nanocomposites based on an ethylene/1-octene copolymerand multiwalled carbon nanotube (CNT) was investigated by means of an atomic forcemicroscope (AFM). Via a special tensile module integrated to an optical microscope, it waspossible to record the stress-strain diagrams of the composites using miniaturized tensilespecimens. By analyzing strain induced structural changes occurring at differentsuccessively applied loads, it was possible to correlate the deformation mechanismsoccurring on various length scales (i.e. at macroscopic, microscopic as well as nanoscopiclevels) to different degrees of deformation. It was noteworthy that, contrasting theproperties of other nanocomposites described so far in the literature, both the strength andtoughness of the composites were found to enhance. It was found that the deformation of thecomposite on nanoscopic scale was inhomogeneous owing to anisotropic properties of theCNTs and their alignments. After unloading the sample, the nanostructure of the originalmaterial was fully regenerated explaining the macroscopically observed elastomericproperties.Keywords: Ethylene/1-octene copolymer; CNT; Deformation mechanism; AFM; In situ deformation testsDOI: 10.3126/jncs.v26i0.3626Journal of Nepal Chemical SocietyVol. 26, 2010Page: 22-30

Preparation and Characterization of Multiwalled Carbon Nanotube/Poly(ε-Caprolactone) Composites via In Situ Polymerization

2007 ◽  
Vol 124-126 ◽  
pp. 1133-1136 ◽  
Author(s):  
Hun Sik Kim ◽  
Byung Hyun Park ◽  
Jin San Yoon ◽  
Hyoung Joon Jin
Keyword(s):  
Carbon Nanotube ◽  
In Situ Polymerization ◽  
Bulk Polymerization ◽  
General Purpose ◽  
Multiwalled Carbon Nanotube ◽  
Multiwalled Carbon ◽  
The Matrix ◽  
Scanning Electron

Poly(ε-caprolactone)/multiwalled carbon nanotube (PCL/MWCNT) composites with different MWCNT contents were successfully prepared by in situ bulk polymerization, which could make them good competitors for commodity materials such as general purpose plastics, while allowing them to completely retain their biodegradability. The mechanical properties of the PCL/MWCNT composites were effectively increased due to the incorporation of the MWCNTs. The composites were characterized using scanning electron microscopy, in order to obtain information on the dispersion of the MWCNTs in the polymeric matrix. In the case where 0.5 wt% of MWCNTs were dispersed in the matrix, the strength and modulus of the composite increased by 23% and 71%, respectively. In addition, the dispersion of the MWCNTs in the PCL matrix resulted in a substantial decrease in the electrical resistivity of the composites being observed as the MWCNTs loading was increased from 0 wt% to 0.5 wt%.

Sign in / Sign up

Export Citation Format

Share Document