Quartz tuning-fork based carbon nanotube transfer into quantum device geometries

Abstract

With the objective of integrating single clean, as-grown carbon nanotubes into complex circuits, we have developed a technique to grow nanotubes directly on commercially available quartz tuning forks using a high temperature CVD process. Multiple straight and aligned nanotubes bridge the >100um gap between the two tips. The nanotubes are then lowered onto contact electrodes, electronically characterized in situ, and subsequently cut loose from the tuning fork using a high current. First quantum transport measurements of the resulting devices at cryogenic temperatures display Coulomb blockade characteristics.

arXiv comment5 pages, 5 figures

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• Nano-assembled open quantum dot nanotube devices
• Stepwise fabrication and optimization of coplanar waveguide resonator hybrid devices
• Optomechanical coupling and damping of a carbon nanotube quantum dot