Nanoscopic wire-based devices and arrays
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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.
85 Citations
81 Claims
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1-23. -23. (canceled)
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24. A method comprising:
forming a nanoscopic wire on a surface in a pattern dictated by chemically patterned surface. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. A method comprising:
growing a nanoscopic wire in the presence of an electric field of intensity sufficient to orient the growth of the wire. - View Dependent Claims (32, 33)
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34. A method comprising:
forming a nanoscopic wire on a surface in a pattern dictated by a mechanically patterned surface. - View Dependent Claims (35, 36, 37, 38)
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39. A method comprising:
forming a nanoscopic wire on a surface in a pattern dictated by gas flow. - View Dependent Claims (40)
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41. A method comprising:
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providing a crossbar array comprising at least two wires in crossbar array orientation, the wires being free of contact with each other; and
bringing the wires into contact with each other. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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55-59. -59. (canceled)
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60. A method comprising:
switching a memory element of a crossbar array between “
on” and
“
off”
states by alternatively biasing, at similar and opposite polarity, wires that cross in the array to define the element.- View Dependent Claims (61, 62)
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63-77. -77. (canceled)
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78. A method comprising:
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providing a mixture of metallic nanotubes and semiconducting nanotubes; and
separating the metallic nanotubes from the semiconducting nanotubes. - View Dependent Claims (79, 80)
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81-89. -89. (canceled)
Specification