Patent ID: 8754397

Claim:
A CNT-based, three-electrode device comprising the following elements: a first Schottky barrier metal pad superposed on a dielectric substrate, with a first metal layer attached to said first Schottky barrier metal pad to form a first device electrode; a semiconductor p- or n-type nanotube, having proximal and distal ends, positioned normal to said dielectric substrate, said proximal end of the nanotube attached to and in electrical communication with said first Schottky barrier metal pad; a first dielectric layer covering said semiconductor type nanotube and extending up to the middle of the nanotube; a second Schottky barrier metal pad positioned on said first dielectric layer and attached to, and in electric communication with, the middle of said semiconductor type nanotube, with a second metal layer connected to said second Schottky barrier metal pad to form a second device electrode; a second dielectric layer positioned on top of said first dielectric layer and covering the full length of said nanotube; a third Schottky barrier metal pad positioned on, and in electrical communication with the distal end said nanotube, with a third metal layer electrically connected to said third Schottky barrier metal pad to form a third device electrode.