Sub 20 nm Short Channel Carbon Nanotube Transistors

Details Sub 20 nm Short Channel Carbon Nanotube Transistors Sub 20 nm Short Channel Carbon Nanotube Transistors

2004-11-07

arxiv.org/abs/cond-mat/0411177v1

Physics

Condensed Matter

Materials Science

Nano Letters in press

Scientific paper

Carbon nanotube field-effect transistors with sub 20 nm long channels and on/off current ratios of > 1000000 are demonstrated. Individual single-walled carbon nanotubes with diameters ranging from 0.7 nm to 1.1 nm grown from structured catalytic islands using chemical vapor deposition at 700 degree Celsius form the channels. Electron beam lithography and a combination of HSQ, calix[6]arene and PMMA e-beam resists were used to structure the short channels and source and drain regions. The nanotube transistors display on-currents in excess of 15 microA for drain-source biases of only 0.4 Volt.

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