Schottky-barrier double-walled carbon nanotube field-effect transistors

Details Schottky-barrier double-walled carbon nanotube field-effect transistors Schottky-barrier double-walled carbon nanotube field-effect transistors

2007-03-06

arxiv.org/abs/cond-mat/0703145v2

Phys. Rev. B 76, 033413 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures. Published form

Scientific paper

10.1103/PhysRevB.76.033413

We investigate electronic transport properties of Schottky-barrier field-effect transistors (FET) based on double-walled carbon nanotubes (DWNT) with a semiconducting outer shell and a metallic inner one. These kind of DWNT-FET show asymmetries of the $I$-$V$ characteristics and threshold voltages due to the electron-hole asymmetry of the Schottky barrier. The presence of the metallic inner shell induces a large effective band gap, which is one order of magnitude larger than that due to the semiconducting shell alone of a single-walled carbon nanotube FET.

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