Carbon Nanotube Electron Windmills: A Novel Design for Nanomotors

Abstract

We propose a new drive mechanism for carbon nanotube (CNT) motors, based upon the torque generated by a flux of electrons passing through a chiral nanotube. The structure of interest comprises a double-walled CNT, formed from, for example, an achiral outer tube encompassing a chiral inner tube. Through a detailed analysis of electrons passing through such a "windmill", we find that the current due to a potential difference applied to the outer CNT generates sufficient torque to overcome the static and dynamic frictional forces that exists between the inner and outer walls, thereby causing the inner tube to rotate.

10 pages and 4 figures

References in corpus (3)

• Molecular Motor Constructed from a Double-Walled Carbon Nanotube Driven by Axially Varying Voltage
• Rotational dynamics and friction in double-walled carbon nanotubes
• Dynamics and Friction in Double Walled Carbon Nanotubes

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