Carbon Nanotube Field Effect Transistor
A CNFET ( Carbon Nanotube Field Effect Transistor ) is an electronic device of commutation of the type Field-effect transistor, using Nanotube S of Carbone. The nanotube of the semiconductor type is used as a channel, through which the electrons can circulate in a controlled way, according to whether one applies or not, a potential difference on a third electrode.
History
In May 2002, IBM announces the creation of first device CNFET. The computer maker shows thus that carbon nanotubes, 50.000 times finer than a human hair can exceed the unit performances of the best devices of commutation with Silicium of the moment.
Operation
Such a field-effect transistor to nanotube (CNFET), uses a nanotube carbon mono-wall in a structure being connected with a conventional transistor with field effect of technology “metal oxidizes semiconductor” (MOSFET). The control electrode (spoils) is laid out with the top of the channel of conduction and is separated from this one by a thin layer Diélectrique (oxide spoils).
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