Nanoscopic wire-based devices and arrays
AssigneePresident and Fellows of Harvard College
InventorsCharles M. Lieber, Thomas Rueckes, Ernesto Joselevich, Kevin Kim
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Abstract
Electrical devices comprised of nanoscopic wires are described, along with methods of their manufacture and use. The nanoscopic wires can be nanotubes, preferably single-walled carbon nanotubes. They can be arranged in crossbar arrays using chemically patterned surfaces for direction, via chemical vapor deposition. Chemical vapor deposition also can be used to form nanotubes in arrays in the presence of directing electric fields, optionally in combination with self-assembled monolayer patterns. Bistable devices are described.
Claims31
An article comprising:
- an electrical crossbar array comprising at least two crossed wires, at least one of which is a nanoscopic wire, wherein the at least two wires are in contact with each other.
An article comprising:
- an electrical crossbar array comprising at least two crossed wires, at least one of which is a nanoscopic wire, wherein the at least two wires are in van der Waals contact with each other.
An article comprising:
- an electrical crossbar array comprising at least two crossed wires, at least one of which is a nanoscopic wire, wherein a resistance between the at least two wires can be detected when the at least two wires are in van der Waals contact with each other.
An article comprising:
- an electrical crossbar array comprising at least two crossed wires, at least one of which is a nanoscopic wire, wherein the at least two wires comprise a first wire disposed adjacent a second wire at a junction, and the first wire is positioned in a trench in a substrate.
An article comprising:
- an electrical crossbar array comprising at least two crossed wires, at least one of which is a nanoscopic wire, wherein the at least two wires comprise a first wire disposed adjacent a second wire at a junction, the second wire has sufficient stiffness to remain free of contact with the first wire in a first, non-contact configuration, and has a sufficient Young's modulus such that the second wire is capable of deformable van der Waals contact with the first wire at the junction upon exposure to a stimulus, and the first and second wires have sufficient adhesion energy to maintain deformable van der Waals contact upon removal of the stimulus.
An article comprising:
- an electrical crossbar array comprising at least two crossed wires, at least one of which is a nanoscopic wire, wherein the crossbar array comprises a first set and second set of at least two parallel wires, and the first set of wires is positioned in parallel trenches in a substrate.
An article comprising:
- a self-assembled monolayer defining a delineated pattern;
- and
- at least two crossed wires associated with the self-assembled monolayer, at least one of the wires being a nanoscopic wire.
Dependencies are inferred from the claim text.