Papers:
Review of Double Wall Carbon Nanotubes, Synthesis and Applications (overview presentation)
We find that the Raman G band for individual double wall carbon nanotubes is split when the two walls are closely spaced or strongly coupled. We show that agglomeration of tubes into bundles leads to [...]
Carbon-based nanocomposite EDLC supercapacitors
Supercapacitors are electric devices with power and energy densities between those of a traditional capacitor and battery. As the demand for energy storage devices with high power and long durability increases, the supercapacitor becomes more [...]
Carbon Nanotube Field Effect Transistors using Printed Semiconducting Tubes
Purified, all-semiconducting nanotubes offer great promise for a variety of applications in RF and microwave electronics. It has been showed theoretically that carbon nanotube electronic devices have the potential of going into THz regime since [...]
Gels of Carbon Nanotubes and Nonionic Surfactant and High-quality Carbon Nanotube Films Prepared by Gel Coating
Processing of large-scale carbon nanotubes (CNTs) are very important for the application of CNTs in various aspects. Here, we report CNT gels by dispersing CNTs in various nonionic surfactants. High-quality CNT films were prepared by [...]
An Amplification Strategy to Label Free Opiate Drug Detection using Liquid-Gated Carbon Nanotubes Transistor
Tey J.N., Wijaya I.P.M., Wei J., Rodriguez I., Maisalkar S.G., Singapore Institute of Manufacturing Technology, SG
A label free, real time detection of opiate drug using the CNT liquid gated transistor is reported in this study. The device was fabricated using a facile method consists of two-step stamping and lamination process, [...]
RNA Functionalized Carbon Nanotube for Chemical Sensing
We demonstrate a versatile class of nanoscaled chemical sensors based on single stranded RNAs as the chemical recognition sites and single-walled carbon nanotube field effect transistors (SWNT-FETs) as the electronic readout components. Motivated by our [...]
Incorporation of plasma modified multi-walled carbon nanotubes into TiO2 photoanode for dye-sensitized solar cells (DSSC)
Dye-sensitized solar cells (DSSC) are fabricated using photoanode comprises of nanocomposite material of TiO2 and multi-walled carbon nanotubes (MWNT) treated in situ by plasma and subsequent functionalization by grafting of maleic anhydride (MA). The carboxyl [...]
Large area, directionally aligned single-walled carbon nanotube thin film by self-assembly and compressed sliding methods
To fabricate large area directional arrangement of SWNTs, we employed two different methods such as self assembly of surface modified SWNTs by drop casting or spin coating and by compressed sliding of SWNT dispersion between [...]
Characterizing the Oxygen Reduction Reaction for the Proton Exchange Fuel Cell with with Novel Nanotechnology-based Catalyst Supports
Groves M.N., Chan A.S.W., Malardier-Jugroot C., Jugroot M., Malardier-Jugroot C., Royal Military College of Canada, CA
The oxygen reduction reaction (ORR) on the cathode of the proton exchange membrane fuel cell is still inefficient. This work will focus on the activity of the catalyst when varying the catalyst support. In the [...]
Influence of Silica Precursor in the Cobalt Incorporation in Mesoporous Silica MCM-41 Used for the Synthesis of Single Walled Carbon Nanotubes
In this work several silica precursors have been used for the MCM-41 mesoporous silica synthesis, i.e. Cab-O-sil, sodium silicate and TEOS with incorporation of cobalt in-situ during the synthesis of the molecular sieves. The materials [...]
Spin Dependent Transport in Carbon Nanostructures
A theoretical investigation of the electronic and magnetic structure in carbon nanoribbons, defective graphene and carbon peapod structures. The critical importance of electron correlation in the emergent behaviour will be demonstrated for; the generation of [...]
Effect of Position and Orientation of Stone-Wales Defects on the Fracture Behavior of a Zigzag Single-Walled Carbon Nanotube
A (10, 0) SWCNT of length 42.59 Å and aspect ratio 10.9 is studied by Molecular Dynamics (MD) simulation both in perfect condition and also with one, two, three or four SW defects introduced into [...]
Controlled Dispersion of Carbon Nanotubes Wrapped in Amphiphilic Block Copolymers: Elaboration of Polymer Nanocomposite
Semaan C., Pecastaings G., Schappacher M., Soum A., Laboratoire de Chimie des Polymères Organiques LCPO, FR
The scope of carbon nanotubes (CNT) applications in practical devices has been hampered by poor dispersion and weak interfacial bonding with polymer matrices. Therefore, effective method for CNT dispersion is required for industrial applications. We [...]
Catalyst-Free Synthesis of Carbon Nanotubes with Low-Intensity Lasers
We have discovered a novel method of synthesizing carbon nanostructures such as single-wall carbon nanotubes (SWNTs), multi-wall carbon nanotubes (MWNTs) and carbon onions. The advantages of our method include, catalyst-free synthesis of CNTs at room [...]
Direct growth of carbon nanotubes on a plastic substrate
The deficiency of carbon nanotube (CNT) growth on temperature-sensitive substrates such as plastic tapes impedes the further progress in CNT electronics. We report a novel method that is able to offer the solution by selectively [...]
Electric-Arc Plasma Instalation and method for Preparing Nanodispersed Carbon Structures
An electric-arc plasma instalation operated in the hidden anode arrngement is constructed and used for the pereparation of carbon nanostructures. A device and a method were developed to produce nanomaterials in the form of nano-particles [...]
Large area graphene sheets synthesized on a bi-metallic catalyst system
Dervishi E., Li Z., Shyaka J., Watanabe F., Biswas A., Umwungeri J.L., Courte A., Biris A.R., Biris A.S., Biris A.R., Biris A.S., University of Arkansas at Little Rock, US
Few layer graphene sheets were synthesized on a bimetallic catalyst system utilizing acetylene as the hydrocarbon source. This is a low-cost method for large scale production of graphene via radio-frequency chemical vapor deposition. The as-produced [...]
Is Aluminum Suitable Buffer Layer for Growth of Carbon Nanowalls?
Self-assembled carbon nanostructures like carbon nanotubes (CNTs) and carbon nanowalls (CNWs) have attracted much attention for several applications, such as gas storage, membranes for electrochemical energy storage, and field emitters. Recently, Wu et al. [1] [...]
Fabrication of Nanoporous Ultrananocrystalline Diamond Membranes
Nanoporous membranes engineered to mimic natural filtration systems can be used in smart implantable drug delivery systems, bioartificial organs, and other novel nano-enabled medical devices. The ultrananocrystalline diamond (UNCD) porous membranes will open new opportunities [...]
Quantum Electrodynamics of Nanosystems
Quantum description of mulitiparticle nano-systems was studied in a hot and dense electromagnetic media. We use renormalization techniques of quantum field theory to show that the electromagnetic properties like electric permittivity and magnetic permeability depend [...]
Electron irradiation induced stuructural changes in nickel nanorods encapsulated in carbon nanotubes
Kulshrestha N., Hazra K.S., Roy S., Bajpai R., Mohapatra D.R., Misra D.S., Indian Institute of Technology - Bombay, IN
Nickel nanorods encapsulated inside the multiwalled carbon nanotubes were prepared using MPCVD technique. As prepared tubes encapsulating nickel were investigated by SEM, XRD and HRTEM. HRTEM study of these tubes exhibits long, good crystalline nickel [...]
Tuning the electronic and chemical surface properties of graphane combining alkali deposition and low-energy ion irradiation
The presence of defects in graphene due to thin-film processing can lead to alterations of its electronic properties. Tuning of graphene’s electronic properties could be achieved through control of thermal deposition of alkaline dopants (e.g. [...]
Fabrication and characterization of optoelectric device using CdSe nanocrystal quantum dots/single-walled carbon nanotubes heterostructure
The ability to transport extracted carriers from the development of NQDs (nanocrystal quantum dots) based optoelectronic sensors have drawn considerable attention due to NQDs’ unique optical properties. Coupling of NQDs to 1-D nanostructures such as [...]
Effect of Source, Surfactant, and Deposition Process on Electronic Properties of Nanotube Arrays
Carbon nanotubes are currently being sought as a potential candidate in the device research area. However, a scalable manufacturing technology for nanotube devices with appropriate yield, reproducibility, and performance in various metrics (mobility, on/off ratio, [...]
Novel Electrostatic Digital Printing Device Based on Single Walled Carbon Nanotube
Carbon nanotube thin films because of their unique optical and electronic properties coupled with the flexibility and easy patternability are promising candidates for application in low cost, large area flexible displays and optoelectronics. In this [...]
A Dual-Frequency Wearable MWCNT Ink-Based Spiral Microstrip Antenna
In this paper, we present a dual-frequency, square spiral microstrip patch antenna constructed from Multi-Walled Carbon Nanotubes (MWCNT) ink deposited on a thin flexible FR4 substrate using a cold printing process. The proposed antenna operates [...]
Vertically Aligned Carbon Nanotube Arrays assembled on Glassy Carbon electrode
We provide a strategy to vertically arrange single-walled carbon nanotubes on graphite electrode. The strategy is rather convenient and opens a new way to modify the graphite electrode with standing carbon nanotubes, which is criticle [...]
Carbon Nanotubes and Grephene for Solar Cells
Carbon nanotubes and graphene represent attractive materials for photovoltaic devices. Single wall carbon nanotubes (SWNTs) bear many superior properties for photovoltaic application such as a wide range of direct bandgaps matching the solar spectrum, strong [...]
Determination of Cefixime in aqueous solution using multiwalled carbon nanotubes solid- phase extraction cartridge
one of the most important chemical properties of carbon nanotubes is having a hydrophobic surface, and because of that many compounds and materials can be retained on the surface of these nano structures. In this [...]
Wafer Level Assembly of Single-Walled Carbon Nanotube (SWCNT) Arrays with Precise Positioning
Cao J., Arun A., Lister K., Acquaviva D., Bhandari J., Ionescu A.M., Ecole Polytechnique Fédérale de Lausanne, CH
A novel wafer level assembly method to fabricate SWCNT arrays with precise positioning of each individual SWCNT by ac-dielectrophoresis (DEP) is presented. Unlike the previous CNT assembly performed directly between electrode pairs, in this work, [...]
100nm Range Short Tube Products of Nano Carbon from Solid Phase Synthesis Process Without Shortening Effort
Solid phase synthesis technique of nano carbon has reached a significant milestone in achieving short tube length in the range of 100nm. This achievement was obtained with a) specific solid carbon source (CS) having small [...]
Synthesis and Characterization of Single Wall Carbon Nanohorns Produced by Direct Vaporization of Graphite
A new patented process for massive production of single wall carbon nanohorn (SWCNH) is presented. Without any catalyst, the prototipe plant is able to produce 100 g/h of high purity carbon nanohorns. The direct vaporization [...]
Effect of Strain on the Energy Band Gaps of (13,0) and (15,0) Carbon Nanotubes
Electronic structure of (13,0) and (15,0) zig-zag single wall carbon nanotubes (SWCNTs) under uniaxial strain are studied using order N, tight binding molecular dynamic (O(N) TBMD) simulation code designed by Dereli et.al. Total energy and [...]
Ab initio investigation of Graphene Based Systems
First-principles calculations employing the hybrid exchange functional B3LYP are used to determine the structural parameters, electronic structure and associated properties of a graphene sheet, graphane chair and graphane boat confirmations. Graphane is found to have [...]
Enhanced Field Emission properties of Titanium decorated Multiwalled Carbon Nanotubes
we report the role of Ti on the growth and field emission properties of multiwalled carbon nanotubes (MWCNTs), prepared by microwave plasma enhanced chemical vapour deposition technique (MPECVD). First set of studies were carried out [...]
Violet-Blue Emission From TiO2/SWCNT Hybrid Structure Synthesized by a Simple Chemical Route
Using a lucid wet chemical process under room temperature, titania nanocrystallites of average size 5 nm have been adhered to the surfaces of SWCNT bundles. The hybrid structure has been characterized by high resolution transmission [...]
Novel interdigital actuators and sensors based on highly overlapped branched carbon nanotubes
This work presents a novel interdigital structures of branched carbon nanotubes on silicon-based membranes where the heavy overlapping between neighboring lines leads to a high capacitance. The value of the capacitance is so high (of [...]
Computer Simulation and Study of Bridge–Like Radiation Defects in the Carbon Nano-Structures in Composite Materials
It is known that unique mechanical properties of carbon nanotubes (CNT) and graphene fragments can be used by introduction them into different matrices as reinforcement elements. But it should be taking into account that the [...]
Rapid Determination of Purity of Carbon Nanotubes
Raman spectroscopy can provide for quick measurements of the carbonaceous purity of carbon nanotube samples. Carbonaceous purity is a critical parameter for many applications of carbon nanotubes. Raman spectroscopy has been reported many times in [...]
Introduction to Raman Spectroscopy as a Characterization Tool for Carbon Nanotubes, Graphene, and other Carbon Nanostructures
While there have been many publications produced in which Raman spectroscopy has been used to characterize various aspects of carbon nanostructures, there have been few works published which provide an overview of what the technique [...]
CNT and Silver-CNT Nanoparticles provide immune responses against RSV
Boyoglu C., Boyoglu S., Adiani L., Boyoglu C., Boyoglu S., Mishra M., Rangari V., Dennis V., Singh S.R., Alabama State University, US
Nanobiotechnology and its potential to be used in treating and diagnosing general and viral infections have allowed us to step into a new realm, when dealing with Respiratory synctical virus (RSV). RSV has long been [...]
Morphology Changes and Defects in Carbon Nanoparticles Due to Different Atom Arrangements
Motivation: Pentagon and heptagon fullerene carbon nanostructures (CNT) have potentials in superlight weight industries. CNT have structural defects caused by irregular atom arrangement during CNT growth. For better use, it needs modifications to remove defects. [...]
Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites
Published: June 21, 2010
Industry sector: Advanced Materials & Manufacturing
Topic: Carbon Nano Structures & Devices
ISBN: 978-1-4398-3401-5