Quantitative Characterization of Vertically Aligned Multi-Walled Carbon Nanotube Arrays Using Small Angle X-Ray Scattering

2011 ◽  
Vol 11 (6) ◽  
pp. 4995-5000 ◽  
Author(s):  
Narayan Ch Das ◽  
Kaikun Yang ◽  
Yayong Liu ◽  
PaulE Sokol ◽  
Zhigang Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Small Angle ◽  
Nanotube Arrays ◽  
Quantitative Characterization ◽  
X Ray ◽  
X Ray Scattering ◽  
Carbon Nanotube Arrays ◽  
Multi Walled Carbon Nanotube ◽  
Vertically Aligned

Quantitative Characterization of the Morphology of Multiwall Carbon Nanotube Films by Small-Angle X-ray Scattering

2007 ◽  
Vol 111 (16) ◽  
pp. 5859-5865 ◽  
Author(s):  
Benjamin N. Wang ◽  
Ryan D. Bennett ◽  
Eric Verploegen ◽  
Anastasios J. Hart ◽  
Robert E. Cohen
Keyword(s):  
Carbon Nanotube ◽  
Small Angle ◽  
Multiwall Carbon Nanotube ◽  
Quantitative Characterization ◽  
X Ray ◽  
X Ray Scattering ◽  
Multiwall Carbon ◽  
Nanotube Films ◽  
Ray Scattering

scholarly journals Enhanced ordering in length-polydisperse carbon nanotube solutions at high concentrations as revealed by small angle X-ray scattering

Soft Matter ◽  
2021 ◽  
Author(s):  
Vida Jamali ◽  
Francesca Mirri ◽  
Evan G. Biggers ◽  
Robert A. Pinnick ◽  
Lucy Liberman ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Small Angle ◽  
Liquid Crystalline ◽  
Polarized Light ◽  
Quantitative Characterization ◽  
X Ray ◽  
X Ray Scattering ◽  
High Concentrations ◽  
Ray Scattering

Quantitative characterization of the phase behavior of carbon nanotube liquid crystalline solutions at high concentrations using polarized light microscopy and small angle X-ray scattering

Shear Induced Alignment of Multi-Walled Carbon Nanotube Dispersions via Small Angle X-Ray Scattering

2008 ◽  
Author(s):  
Saswati Pujari ◽  
Wesley R. Burghardt ◽  
Sameer S. Rahatekar ◽  
Alan H. Windle ◽  
Krzysztof K. Koziol ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Small Angle ◽  
X Ray ◽  
X Ray Scattering ◽  
Multi Walled Carbon Nanotube ◽  
Ray Scattering

scholarly journals The shape of the orientation distribution of carbon nanotubes in aligned arrays

2014 ◽  
Vol 70 (a1) ◽  
pp. C596-C596
Author(s):  
Ulla Vainio ◽  
Thea Schnoor ◽  
Sarathlal Koyiloth Vayalil ◽  
Karl Schulte ◽  
Martin Müller ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Iron Catalyst ◽  
Chemical Vapour ◽  
Orientation Distribution ◽  
Steric Interaction ◽  
Nanotube Arrays ◽  
X Ray ◽  
Carbon Nanotube Arrays ◽  
Vertically Aligned

Recent simulations of vertically aligned carbon nanotube arrays have shown that the shape of the orientation distribution of nanotubes within the array has a drastic effect on the electrical properties of the array. Orienting of shape-anisotropic objects can be carried out in several different ways such as shearing, magnetically steering, or by vibrating the objects. Nevertheless, perfect orientation is difficult if not impossible to achieve. In the case of the growth of carbon nanotube arrays, self-confinement can occur affecting the resultant orientation distribution. Yet so far the shape of the orientation distribution has not been quantified in great detail and it has been mostly assumed to be Gaussian or Lorentzian. In the present work, multi-walled carbon nanotube arrays were grown via aerosol-assisted chemical vapour deposition with iron catalyst and investigated using small-angle X-ray scattering, a method perfectly suited to characterizing the orientation of carbon nanotubes. Using a microfocused X-ray beam of 24 μm x 17 μm in size at beamline P03 of the PETRA III synchrotron storage ring in Hamburg, we determined the orientation distribution of the vertically aligned carbon nanotubes along the film height. Remarkably, the packing density of the carbon nanotubes seems to correlate not only with the width of the distribution but also its shape. The shape of the orientation distribution was then compared to that from different oriented systems. These findings indicate that by using alignment methods that are based on steric interaction between particles, such as shearing or self-confinement during particle growth, the system will reach an alignment with an orientation distribution closer to the Laplace distribution than to the normal distribution. Such a finding has profound implications for simulation studies of mechanical, electrical and other properties of many hierarchical materials.

Characterization of carbon nanotube webs and yarns with small angle X-ray scattering: Revealing the yarn twist and inter-nanotube interactions and alignment

Carbon ◽  
2013 ◽  
Vol 63 ◽  
pp. 562-566 ◽  
Author(s):  
Ludovic Dumée ◽  
Kallista Sears ◽  
Stephen Mudie ◽  
Nigel Kirby ◽  
Chris Skourtis ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Small Angle ◽  
X Ray ◽  
Yarn Twist ◽  
X Ray Scattering ◽  
Ray Scattering

Microwave characterization of vertically aligned multiwalled carbon nanotube arrays

2011 ◽  
Vol 98 (20) ◽  
pp. 203105 ◽  
Author(s):  
Anestis Katsounaros ◽  
Khalid Z. Rajab ◽  
Yang Hao ◽  
Mark Mann ◽  
William I. Milne
Keyword(s):  
Carbon Nanotube ◽  
Multiwalled Carbon Nanotube ◽  
Nanotube Arrays ◽  
Multiwalled Carbon ◽  
Microwave Characterization ◽  
Carbon Nanotube Arrays ◽  
Vertically Aligned

scholarly journals Characterization of contact resistances in ceramic-coated vertically aligned carbon nanotube arrays

RSC Advances ◽  
2019 ◽  
Vol 9 (13) ◽  
pp. 7266-7275
Author(s):  
Meng Li ◽  
Ning Yang ◽  
Vanessa Wood ◽  
Hyung Gyu Park
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Nanotube Arrays ◽  
Aligned Arrays ◽  
Carbon Nanotube Arrays ◽  
Vertically Aligned

End- and side-contact resistances between carbon nanotubes and contacts are easily probed in vertically aligned arrays.

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