Pure-chirality carbon nanotubes and methods

Inactive Publication Date: 2006-05-18
LUNA INNOVATIONS
View PDF15 Cites 43 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018] Also provided are components for transistors, optical devices, coded-security tagging materials, and/or medical devices and/or applications comprising single-walled carbon nanotubes, wherein the single-walled carbon nanotubes comprise at least 50% nanotubes with the same (n,m) chirali

Problems solved by technology

Challenges to pure-chirality nanotube production include: (1) large scale production, and (2) processing issues, such a

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pure-chirality carbon nanotubes and methods
  • Pure-chirality carbon nanotubes and methods
  • Pure-chirality carbon nanotubes and methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Pure-chirality single-walled nanotubes (PC-SWNT) can be uniquely suited to many high-end applications, such as molecular electronics and computing, optical devices (photonic crystals and solar cell materials), electromagnetic interference (EMI) shielding, transistors, such as field effect transistors, coded-security tagging materials, medical devices and / or applications, etc.

[0037] As used herein, pure-chirality nanotubes include nanotubes with the same (n,m) chirality as primarily or substantially all of the other nanotubes in a bulk product of nanotubes or a plurality of at least 10,000 nanotubes. For example, in bulk products, nanotubes with at least 50%, 90%, or 98% of nanotubes with the same (n,m) chirality as the (n,m) chirality of the remainder of the bulk, as well as nanotubes which are substantially all one, single (n,m) chirality, are pure-chirality nanotubes and can be used to provide the high-end applications listed above. In addition, individual PC-SWNT molecule...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A method of providing bulk products of pure-chirality single walled nanotubes having substantially one chirality, and bulk products of pure-chirality nanotubes having at least 50% one chirality. By providing bulk products of pure-chirality nanotubes, the electrical conductivity of the nanotubes can be predetermined and can be made more electrically conductive or more semi-conductive, as desired. Also provided are methods of purifying bulk products of multiple chirality nanotubes into pure-chirality nanotube bulk products, as well as methods of identifying chiralities of bulk product nanotubes. Moreover, fluorocarbon surfactant systems capable of solubilizing nanotubes in perfluorocarbon solvents and facilitating purification and processing are also provided.

Description

[0001] This application claims priority under 35 U.S.C. § 119 to U.S. Provisional Application No. 60 / 628,204 entitled PURE-CHIRALITY CARBON NANOTUBES AND METHODS and filed on Nov. 17, 2004, the entire content of which is hereby incorporated by reference.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] This invention relates to pure-chirality carbon nanotubes (PC-SWNT) in industrially relevant quantities, as well as their production and use in solutions and / or dispersions. Additionally, this invention relates to a new composition of carbon nanotubes consisting essentially of pure-chirality carbon nanotubes of substantially one chirality. Also, this invention relates to perfluorocarbon surfactants that can be used for dissolving and dispersing nanotubes in perfluorocarbon solvents. [0004] 2. Description of the Related Art [0005] Fullerene nanotubes originated with studies of fullerenes (C60), also known as “buckyballs.” Tubular relatives of the buckyballs are so-cal...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D01F9/12
CPCB82Y10/00B82Y30/00D01F9/127
Inventor WILSON, STEPHEN R.
Owner LUNA INNOVATIONS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap