scholarly journals Carbon nanotube characterization: Optical Visualization of Carbon Nanotubes-a Unifying Linkage Between Microscopic and Spectroscopic Characterization Techniques (Small 18/2010)

Small ◽  
2010 ◽  
Vol 6 (18) ◽  
pp. n/a-n/a
Author(s):  
Claudia Backes ◽  
Jan M. Englert ◽  
Nicolas Bernhard ◽  
Frank Hauke ◽  
Andreas Hirsch
Small ◽  
2010 ◽  
Vol 6 (18) ◽  
pp. 1968-1973 ◽  
Author(s):  
Claudia Backes ◽  
Jan M. Englert ◽  
Nicolas Bernhard ◽  
Frank Hauke ◽  
Andreas Hirsch

2019 ◽  
Vol 2019 ◽  
pp. 1-24 ◽  
Author(s):  
Junjie Chen ◽  
Xuhui Gao ◽  
Deguang Xu

The current state of characterization techniques for the interface in carbon nanotube-reinforced polymer nanocomposites is reviewed. Different types of interfaces that exist within the nanocomposites are summarized, and current efforts focused on understanding the interfacial properties and interactions are reviewed. The emerging trends in characterization techniques and methodologies for the interface are presented, and their strengths and limitations are summarized. The intrinsic mechanism of the interactions at the interface between the carbon nanotubes and the polymer matrix is discussed. Special attention is given to research efforts focused on chemical functionalization of carbon nanotubes. The benefits and disadvantages associated with covalent and noncovalent functionalization methods are evaluated, respectively. Various techniques used to characterize the properties of the interface are extensively reviewed. How the mechanical and thermal properties of the nanocomposites depend on the physical and chemical nature of the interface is also discussed. Better understanding and design of the interface at the atomic level could become the forefront of research in the polymer community. Potential problems going to be solved are finally highlighted.


2003 ◽  
Vol 772 ◽  
Author(s):  
Masakazu Muroyama ◽  
Kazuto Kimura ◽  
Takao Yagi ◽  
Ichiro Saito

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.


2021 ◽  
Author(s):  
Manasi Doshi ◽  
Eric Paul Fahrenthold

Explosives and hazardous gas sensing using carbon nanotube (CNT) based sensors has been a focus of considerable experimental research. The simplest sensors have employed a chemiresistive sensing mechanism, and rely...


Author(s):  
Mohammad Hamza Kirmani ◽  
Geeta Sachdeva ◽  
Ravindra Pandey ◽  
Gregory M. Odegard ◽  
Richard Liang ◽  
...  

2007 ◽  
Vol 124-126 ◽  
pp. 1309-1312
Author(s):  
Nguyen Duc Hoa ◽  
Nguyen Van Quy ◽  
Gyu Seok Choi ◽  
You Suk Cho ◽  
Se Young Jeong ◽  
...  

A new type of gas sensor was realized by directly depositing carbon nanotube on nano channels of the anodic alumina oxide (AAO) fabricated on p-type silicon substrate. The carbon nanotubes were synthesized by thermal chemical vapor deposition at a very high temperature of 1200 oC to improve the crystallinity. The device fabrication process was also developed. The contact of carbon nanotubes and p-type Si substrate showed a Schottky behavior, and the Schottky barrier height increased with exposure to gases while the overall conductivity decreased. The sensors showed fast response and recovery to ammonia gas upon the filling (400 mTorr) and evacuation.


Author(s):  
Kang-Jia Wang ◽  
Guo-Dong Wang

This article mainly studies the vibration of the carbon nanotubes embedded in elastic medium. A new novel method called the Hamiltonian-based method is applied to determine the frequency property of the nonlinear vibration. Finally, the effectiveness and reliability of the proposed method is verified through the numerical results. The obtained results in this work are expected to be helpful for the study of the nonlinear vibration.


Author(s):  
María Pilar de Lara-Castells ◽  
Alexander O. Mitrushchenkov

A new nuclear spin and spatial symmetry-adapted full quantum method for light fermionic and bosonic particles under cylindrical carbon nanotube confinement.


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