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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.
Selected Properties of Carbon Nanostructures: from Exotic Fullerenes to Nanotubes
0.0 out of 5 stars
31 Mar 2008 | Online Presentations | Contributor(s): Manfred M. Kappes
The talk presents results from ongoing projects in the field of carbon
nanostructures: (i) Mass selected ion beam soft-landing has been used
to generate exotic fullerene materials comprising...
Boltzmann Transport Simulator for CNTs
5.0 out of 5 stars
27 Mar 2008 | Tools | Contributor(s): Zlatan Aksamija, Umberto Ravaioli
Simulate Electron transport in Single-walled carbon nanotubes using an upwinding discretization of the Boltzmann transport equation in the relaxation time approximation.
The Novel Nanostructures of Carbon
3.0 out of 5 stars
28 Feb 2008 | Online Presentations | Contributor(s): Gene Dresselhaus
A brief review will be given of the physical underpinnings of carbon nanostructures that were developed over the past 60 years, starting with the electronic structure and physical properties of...
What Promises do Nanotubes and Nanowires Hold for Future Nanoelectronics Applications?
18 Feb 2008 | Online Presentations | Contributor(s): Joerg Appenzeller
Various low-dimensional materials are currently explored for future electronics applications. The common ground
for all these structures is that the surface related impact can no longer be...
Computational Nanoscience, Lecture 5: A Day of In-Class Simulation: MD of Carbon Nanostructures
15 Feb 2008 | Teaching Materials | Contributor(s): Jeffrey C Grossman, Elif Ertekin
In this lecture we carry out simulations in-class, with guidance from the instructors. We use the LAMMPS tool (within the nanoHUB simulation toolkit for this course). Examples include...
Computational Nanoscience, Lecture 4: Geometry Optimization and Seeing What You're Doing
13 Feb 2008 | Teaching Materials | Contributor(s): Jeffrey C Grossman, Elif Ertekin
In this lecture, we discuss various methods for finding the ground state structure of a given system by minimizing its energy. Derivative and non-derivative methods are discussed, as well as the...
Heat Transfer across Solid Contacts Enhanced with Nanomaterials
11 Feb 2008 | Online Presentations | Contributor(s): Timothy S Fisher
This presentation will describe thermal transport processes at solid-solid material interfaces. An overview of applications in the electronics industry will serve to motivate the subject, and then...
Dynamics on the Nanoscale: Time-domain ab initio studies of quantum dots, carbon nanotubes and molecule-semiconductor interfaces
01 Feb 2008 | Online Presentations | Contributor(s): Oleg Prezhdo
Device miniaturization requires an understanding of the dynamical response of materials on the nanometer scale. A great deal of experimental and theoretical work has been devoted to characterizing...
Crystal Viewer Tool
4.0 out of 5 stars
11 Jan 2008 | Tools | Contributor(s): Yuanchen Chu, Fan Chen, Daniel F Mejia, James Fonseca, Michael Povolotskyi, Gerhard Klimeck
Visualize different crystal lattices and planes
Excellence in Computer Simulation: Computational Materials
20 Dec 2007 | Online Presentations | Contributor(s): Eric Schwegler
This presentation was one of 13 presentations in the one-day forum,
"Excellence in Computer Simulation," which brought together a broad
set of experts to reflect on the future of...
17 Dec 2007 | Tools | Contributor(s): Joe Ringgenberg, P. Alex Greaney, daniel richards, Jeffrey C Grossman, Jeffrey B. Neaton, Justin Riley
Study the transfer of energy between the vibrational modes of a carbon nanotube.
New Dimension in Performance: Harnessing 3D Integration Technology
2.0 out of 5 stars
29 Nov 2007 | Online Presentations | Contributor(s): Kerry Bernstein
Despite generation on generation of scaling, computer chips have remained essentially 2-dimensional. Improvements in on-chip wire delay, and in the total number of inputs and outputs has not been...
Oligodeoxyribonucleotide Association with Single-Walled Carbon Nanotubes
06 Aug 2007 | Online Presentations | Contributor(s): Jennifer McDonald
Commercially available single-walled carbon nanotubes (SWCNTs) tend to aggregate as ropes and bundles during production making them of little use in many scientific and industrial applications. An...
The Effect of Physical Geometry on the Frequency Response of Carbon Nanotube Field-Effect Transistors
03 Aug 2007 | Online Presentations | Contributor(s): Dave Lyzenga
In order for carbon nanotube (CNT) electrical devices to be fabricated, it is necessary to obtain modifiable operation characteristics. Developing parametric equations to achieve this...
Introduction to FETToy
03 Jul 2007 | Series | Contributor(s): James K Fodor, Jing Guo
This learning module introduces nanoHUB users to the FETToy simulator. A brief introduction to FETToy is presented, followed by voiced presentations featuring the simulator in action. Upon...
Introduction to CNTbands
28 Jun 2007 | Series | Contributor(s): James K Fodor, Jing Guo
This learning module introduces nanoHUB users to the CNTbands simulator. A brief introduction to CNTbands is presented, followed by voiced presentations featuring the simulator in action. Upon...
3D Molecular Models
26 Jun 2007 | Animations | Contributor(s): Nicholas Vargo
This animation was created as part of the Children's Museum Nanotechnology Exhibit to give the viewer an idea of what objects look like at the nano-level. The molecules range from something as...
Bandstructure of Carbon Nanotubes and Nanoribbons
14 Jun 2007 | Series | Contributor(s): James K Fodor, Seokmin Hong, Jing Guo
This learning module introduces users to the Carbon-Nano Bands simulation tool, which simulates the bandstructure of Carbon Nanotubes (CNTs) and Nanoribbons (CNRs). To gives users a strong...
From Research to Learning in Chemistry through Visualization and Computation
21 May 2007 | Online Presentations | Contributor(s): Eric Jakobsson
Modern chemistry research and high school chemistry education are separated by institutional and geographical boundaries. As such, much of secondary chemistry education is still based on the...