scholarly journals Electrokinetics of scalable, electric-field-assisted fabrication of vertically aligned carbon-nanotube/polymer composites

2015 ◽  
Vol 117 (21) ◽  
pp. 214306 ◽  
Author(s):  
Richard J. Castellano ◽  
Cevat Akin ◽  
Gabriel Giraldo ◽  
Sangil Kim ◽  
Francesco Fornasiero ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electric Field ◽  
Polymer Composites ◽  
Vertically Aligned

scholarly journals Scalable electric-field-assisted fabrication of vertically aligned carbon nanotube membranes with flow enhancement

Carbon ◽  
2020 ◽  
Vol 157 ◽  
pp. 208-216 ◽  
Author(s):  
Richard J. Castellano ◽  
Robert F. Praino ◽  
Eric R. Meshot ◽  
Chiatai Chen ◽  
Francesco Fornasiero ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electric Field ◽  
Nanotube Membranes ◽  
Carbon Nanotube Membranes ◽  
Vertically Aligned ◽  
Flow Enhancement

Development of carbon nanotube-polymer composites with oriented distribution of MWCNTs induced by electric field

2014 ◽  
Vol 211 (12) ◽  
pp. 2718-2722 ◽  
Author(s):  
Olena Yakovenko ◽  
Ludmila Matzui ◽  
Ludmila Vovchenko ◽  
Alexander Zhuravkov
Keyword(s):  
Carbon Nanotube ◽  
Electric Field ◽  
Polymer Composites

scholarly journals Aligned single-wall carbon nanotube polymer composites using an electric field

2006 ◽  
Vol 44 (12) ◽  
pp. 1751-1762 ◽  
Author(s):  
Cheol Park ◽  
John Wilkinson ◽  
Sumanth Banda ◽  
Zoubeida Ounaies ◽  
Kristopher E. Wise ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electric Field ◽  
Polymer Composites ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon

Alignment of MWCNTs in Polymer Composites by Dielectrophoresis

2008 ◽  
Author(s):  
Ming-Wen Wang
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Electric Field ◽  
Polymer Composites ◽  
Flexural Modulus ◽  
Low Carbon ◽  
Multi Wall Carbon Nanotubes ◽  
Structural Reinforcement ◽  
Ac Electric Field

Successful structural reinforcement of polymer matrices by carbon nanotube has been shown where significant improvement of mechanical properties was achieved at very low carbon nanotube loading. Due to the mechanical properties of aligned composites is better than random has been demonstrated; the conception is not easy to perform in carbon nanotube polymer composites via conventional techniques. Here, we report a novel operation to actively align and network multi-wall carbon nanotubes (MWCNTs) in a polymer matrix. In this process, MWCNTs were aligned via AC electric field induced dipolar interactions among the nanotubes in a viscous matrix followed by immobilization by curing polymerization under continued application of the anisotropic electric field. In situ SEM verified the electrostatic stabilization of the MWCNTs in the dispersion and the orientation and agglomeration caused by the dielectrophoretic force. Alignment of MWCNTs was controlled as a function of magnitude, frequency, and application time of the applied dielectrophoresis. In the present work, MWCNTs are not only aligned along the field, but also migrate laterally to form thick. The actively aligned MWCNTs amplify the flexural modulus and wear-resisting property.

Effect of electric field on creep and stress-relaxation behavior of carbon nanotube forests

RSC Advances ◽  
2016 ◽  
Vol 6 (72) ◽  
pp. 67685-67692 ◽  
Author(s):  
Piyush Jagtap ◽  
Amit Kumar ◽  
Praveen Kumar
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Stress Relaxation ◽  
Electric Field ◽  
Vertically Aligned Carbon Nanotubes ◽  
Stress Relaxation Behavior ◽  
Aligned Carbon Nanotubes ◽  
Vertically Aligned ◽  
Creep And Stress Relaxation ◽  
Carbon Nanotube Forests

Carbon nanotube forests (CNTFs) are porous ensembles of vertically aligned carbon nanotubes, exhibiting excellent reversible compressibility and electric field tunable stress–strain, creep, and viscoelastic responses.

Fabrication of Carbon Nanotube Triode Using Helicon Plasma Cvd with Electroplated Nico Catalyst

2003 ◽  
Vol 772 ◽  
Author(s):  
Masakazu Muroyama ◽  
Kazuto Kimura ◽  
Takao Yagi ◽  
Ichiro Saito
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Metal Catalyst ◽  
Ni Catalyst ◽  
Plasma Cvd ◽  
Helicon Plasma ◽  
Plasma Enhanced Cvd ◽  
Turn On ◽  
Aligned Carbon Nanotubes ◽  
Vertically Aligned

AbstractA carbon nanotube triode using Helicon Plasma-enhanced CVD with electroplated NiCo catalyst has been successfully fabricated. Isolated NiCo based metal catalyst was deposited at the bottom of the cathode wells by electroplating methods to control the density of carbon nanotubes and also reduce the activation energy of its growth. Helicon Plasma-enhanced CVD (HPECVD) has been used to deposit nanotubes at 400°C. Vertically aligned carbon nanotubes were then grown selectively on the electroplated Ni catalyst. Field emission measurements were performed with a triode structure. At a cathode to anode gap of 1.1mm, the turn on voltage for the gate was 170V.

scholarly journals Optically Induced Field-Emission Source Based on Aligned Vertical Carbon Nanotube Arrays

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1810
Author(s):  
Mengjie Li ◽  
Qilong Wang ◽  
Ji Xu ◽  
Jian Zhang ◽  
Zhiyang Qi ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electric Field ◽  
Field Emission ◽  
Field Enhancement ◽  
Absorption Efficiency ◽  
Photon Absorption ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays ◽  
Induced Field ◽  
Optically Induced

Due to the high field enhancement factor and photon-absorption efficiency, carbon nanotubes (CNTs) have been widely used in optically induced field-emission as a cathode. Here, we report vertical carbon nanotube arrays (VCNTAs) that performed as high-density electron sources. A combination of high applied electric field and laser illumination made it possible to modulate the emission with laser pulses. When the bias electric field and laser power density increased, the emission process is sensitive to a power law of the laser intensity, which supports the emission mechanism of optically induced field emission followed by over-the-barrier emission. Furthermore, we determine a polarization dependence that exhibits a cosine behavior, which verifies the high possibility of optically induced field emission.

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