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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.
ECET 499N: Introduction to Nanotechnology
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30 Mar 2009 | Courses | Contributor(s): Helen McNally
An introduction to the emerging area of nanotechnology will be studied. The primary focus will be on the technologies of nanotechnology, with specific emphasis on electronics and electrical …
Fundamentals of Nanoelectronics (Fall 2004)
01 Sep 2004 | Courses | Contributor(s): Supriyo Datta, Behtash Behinaein
Welcome to the ECE 453 lectures. The development of "nanotechnology" has made it possible to engineer material and devices on a length scale as small as several nanometers (atomic distances are ~ …
Quantum Transport: Atom to Transistor (Spring 2004)
23 May 2006 | Courses | Contributor(s): Supriyo Datta
The development of "nanotechnology" has made it possible to engineer materials and devices on a length scale as small as several nanometers (atomic distances are ~ 0.1 nm). The properties of such …
nanoHUB.org, a resource for nanoscience and nanotechnology, is supported by the National Science Foundation and other funding agencies.