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US 11,884,544 B2Granted
Covalent reinforcement of carbon nanotube assemblies
AssigneeLawrence Livermore National Security, LLC
InventorsXavier N. Lepro Chavez, Chantel M. Aracne-Ruddle, Leonardus Bimo Bayu Aji, Sergei O. Kucheyev, Michael Stadermann
Life of this patent
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Abstract
Disclosed here is a method of fabricating a covalently reinforced carbon nanotube (CNT) assembly. The method includes producing a CNT assembly by pulling entangled CNTs from a CNT array fabricated on a substrate, the CNT assembly including a plurality of CNTs that are aligned; and creating covalent bonding between the CNTs of the CNT assembly by applying a high energy ion irradiation to the CNT assembly.
Claims13
A method of fabricating a covalently reinforced carbon nanotube (CNT) assembly, comprising:
- producing a CNT assembly by pulling entangled CNTs from a CNT array fabricated on a substrate, the CNT assembly including a plurality of CNTs that are aligned;
- and
- inducing a high stiffness in the CNT assembly by applying a high energy ion irradiation to the CNT assembly such that an intensity of a D band of Raman spectroscopy of the CNT assembly is greater than an intensity of a G band of the Raman spectroscopy of the CNT assembly, wherein an irradiation cross-section of the high energy ion irradiation is selected such that the ions of the high energy ion irradiation pass through an overall thickness of the CNT assembly to generate defects uniformly without inducing ion implantation.
Dependencies are inferred from the claim text.