Controlled deposition of nanotubes
OwnerYan Mei Wang, Alex K. Zettlinventors
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Abstract
By a simple method single suspended carbon nanotubes (CNTs) are deposited at predetermined locations on a pre-patterned device. A narrow trench is first formed on the device at the desired location for depositing a CNT. A fluid drying deposition process is then used to mount the CNT at the chosen location. A droplet of a solvent containing the CNTs in suspension is deposited at the desired location, and the solvent is allowed to evaporate. This leaves the CNT bridging the trench at the selected location. The effect is enhanced by applying an electric field. The method is also applicable to other nano-elongated objects such as nanowires and biomolecules.
Claims18
A method for controllably depositing a nanotube between a pair of contact points, comprising:
- forming a trench between the pair of contact points;
- forming a suspension of nanotubes in an evaporatable solvent;
- applying a droplet of the solvent with suspended nanotubes between the pair of contact points;
- allowing the solvent to evaporate, leaving a nanotube connecting the pair of contact points.
A method for controllably depositing a nano-elongated object between a pair of contact points, comprising:
- forming a trench between the pair of contact points;
- forming a suspension of nano-elongated objects in an evaporatable solvent;
- applying a droplet of the solvent with suspended nano-elongated objects between the pair of contact points;
- allowing the solvent to evaporate, leaving a nano-elongated object connecting the pair of contact points.
Dependencies are inferred from the claim text.