Saturday, February 13, 2010

Carbon Nanotubes

Carbon nanotubes are hexagonal arrangement of carbon atoms that is rolled into tubes. This small straw-like cylinders of pure carbon useful electrical properties.You are already too small transistors and one-dimensional wire.

They were developed by using nanotechnology, a relatively new field of electronic circuits and devices from single atoms and molecules buildings. Nano means one thousand millionth of a unit. A nanometer is one thousand one millionth of a meter. The first nanofabrication experiments took place in 1990, when the individual xenon atoms on a nickel substrate is used and used games from a company logo. A central goal for nanotechnology is to computer chips and other devices that are a thousand times smaller than they are now building.

Carbon nanotubes have great theoretical potential but has not yet reached the hype surrounding development. Researchers continue to exploit opportunities to locate them, but how successful programs, the potential for very lucrative.
Scientists have recently succeeded in changing, carbon nanotubes, then deliver them to the electrons when exposed to light.

This was done by two flat rings of carbon molecules, a sandwich ferrocene (iron) molecule. Ferrocene is known for its tendency to attract electrons prior art. When exposed to visible light, accepts carbon atoms ferrocene molecule.

This is the first time that carbon nanotubes are crossed to undergo light-induced electron transfer. The researchers say that these modified carbon nanotubes, the first step in building solar cells using this technology.

The newly discovered ability of carbon nanotubes for use as an electron source has great potential. Carbon nanotubes could one day instead of the wire in the X-ray machines that have a tendency to burn quickly. Scientists hope to use it for portable x-ray equipment for use in developing countries, the security at the airport, ambulance, and worked with customs.
Carbon nanotubes are of great importance for use in flat panel displays, microwave generators, electrical surge protection equipment and high-intensity lamps.

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