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100 amps of electricity crackle in a vacuum chamber, creating a
spark that transforms carbon vapor into tiny structures. Depending
on the conditions, these structures can be shaped like little,
60-atom soccer balls, or like rolled-up tubes of atoms, arranged
in a chicken-wire pattern, with rounded ends. These tiny, carbon
nanotubes, discovered by Sumio Iijima at NEC labs in 1991, have
amazing properties. They are 100 times stronger than steel, but
weigh only one-sixth as much. They are incredibly resilient
under physical stress; even when kinked to a 120-degree angle,
they will bounce back to their original form, undamaged. And
they can carry electrical current at levels that would vaporize
ordinary copper wires.
Learn more about carbon nanotubes from the many resources on this site, listed below. More information on Carbon nanotubes can be found here.
Quantum and Atomistic Effects in Nanoelectronic Transport Devices
28 Jun 2013 | | Contributor(s):: Neophytos Neophytou
As devices scale towards atomistic sizes, researches in silicon electronic device technology are investigating alternative structures and materials. As predicted by the International Roadmap for Semiconductors, (ITRS), structures will evolve from planar devices into devices that include 3D...
Inelastic Transport in Carbon Nanotube Electronic and Optoelectronic Devices
28 Jun 2013 | | Contributor(s):: Siyu Koswatta
Discovered in the early 1990's, carbon nanotubes (CNTs) are found to have exceptional physical characteristics compared to conventional semiconductor materials, with much potential for devices surpassing the performance of present-day electronics. Semiconducting CNTs have large carrier...
Electron Phonon Interaction in Carbon Nanotube Devices
28 Jun 2013 | | Contributor(s):: Sayed Hasan
With the end of silicon technology scaling in sight, there has been a lot of interest in alternate novel channel materials and device geometry. Carbon nanotubes, the ultimate one-dimensional (1D) wire, is one such possibility. Since the report of the first CNT transistors, lots has been learned...
Carbon Nanotube Electronics: Modeling, Physics, and Applications
28 Jun 2013 | | Contributor(s):: Jing Guo
In recent years, significant progress in understanding the physics of carbon nanotube electronic devices and in identifying potential applications has occurred. In a nanotube, low bias transport can be nearly ballistic across distances of several hundred nanometers. Deposition of high-k gate...
Analysis of DC Electrical Conductivity Models of Carbon Nanotube-Polymer Composites with Potential Application to Nanometric Electronic Devices
12 Mar 2013 | | Contributor(s):: Rafael Vargas-Bernal, Gabriel Herrera-Pérez, Ma. Elena Calixto-Olalde, Margarita Tecpoyotl-Torres
The design of nanometric electronic devices requires novel materials for improving their electrical performance from stages of design until their fabrication. Until now, several DC electrical conductivity models for composite materials have been proposed. However, these models must be valued to...
Model Validation Document for "A Meta-Analysis of Carbon Nanotube Pulmonary Toxicity Studies – How Physical Dimensions and Impurities Affect the Toxicity of Carbon Nanotubes"
19 Nov 2012 | | Contributor(s):: Jeremy M Gernand, Elizabeth Casman
This document contains model learning statistics, and structure of the models utilized in the paper “A meta-analysis of carbon nanotube pulmonary toxicity studies – How physical dimensions and impurities affect the toxicity of carbon nanotubes.” This information is meant to supplement and...
A CNTFET-Based Nanowired Induction Two-Way Transducers
05 Sep 2012 | | Contributor(s):: Rostyslav Sklyar
A complex of the induction magnetic field two-way nanotransducers of the different physical values for both the external and implantable interfaces in a wide range of arrays are summarized. Implementation of the nanowires allows reliable transducing of the biosignals' partials and bringing of...
Direct mechanical measurement of the tensile strength and elastic modulus of multiwalled carbon nanotubes
07 Oct 2011 | | Contributor(s):: Brian Demczyk, Y.M. Wang, J. Cumings, M. Hetman, W. Han, A. Zettl. R. O. Ritchie
This work represents the first in-situ measurenment of the tensile strength of a carbon nanotuube.
Self-Consistent Properties of Carbon Nanotubes and Hexagonal Arrays as Composite Reinforcements
05 May 2010 | | Contributor(s):: R. Byron Pipes
A self-consistent set of relationships is developed for the physical properties of single walled carbon nanotubes (SWCN) and their hexagonal arrays as a function of the chiral vector integer pair, (n,m). Properties include effective radius, density, principal Young’s modulus, and specific...
Multiple Transfers of Single-Walled Carbon Nanotubes on Silicon Wafers
20 Mar 2009 | | Contributor(s):: Alan Salvador Teran
Single-walled carbon nanotubes (SWCNTs) have many applications, including high speed transistor devices (see Figure 1). SWCNTs are grown on single-crystal quartz wafers and then transferred onto silicon wafers by a process that involves gold evaporation and thermal release tape. When they are...
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30 Oct 2006 | | Contributor(s):: Jing Guo
In recent years, significant progress in understanding the physics of carbon nanotube electronic devices and in identifying potential applications has occurred. In a nanotube, low bias transport can be nearly ballistic across distances of several hundred nanometers. Deposition of high-κ gate...
Towards Multi-Scale Modeling of Carbon Nanotube Transistors
20 Sep 2006 | | Contributor(s):: Jing Guo, Supriyo Datta, Mark Lundstrom, M. P. Anantram
Multiscale simulation approaches are needed in order to address scientific and technological questions in the rapidly developing field of carbon nanotube electronics. In this paper, we describe an effort underway to develop a comprehensive capability for multiscale simulation of carbon nanotube...