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Title: Carbon nanotube substrates and catalyzed hot stamp for polishing and patterning the substrates

Abstract

The present invention is generally directed to catalyzed hot stamp methods for polishing and/or patterning carbon nanotube-containing substrates. In some embodiments, the substrate, as a carbon nanotube fiber end, is brought into contact with a hot stamp (typically at 200-800.degree. C.), and is kept in contact with the hot stamp until the morphology/patterns on the hot stamp have been transferred to the substrate. In some embodiments, the hot stamp is made of material comprising one or more transition metals (Fe, Ni, Co, Pt, Ag, Au, etc.), which can catalyze the etching reaction of carbon with H.sub.2, CO.sub.2, H.sub.2O, and/or O.sub.2. Such methods can (1) polish the carbon nanotube-containing substrate with a microscopically smooth finish, and/or (2) transfer pre-defined patterns from the hot stamp to the substrate. Such polished or patterned carbon nanotube substrates can find application as carbon nanotube electrodes, field emitters, and field emitter arrays for displays and electron sources.

Inventors:
 [1];  [2];  [2];  [2];  [2]
  1. Evanston, IL
  2. Houston, TX
Issue Date:
Research Org.:
William Marsh Rice University (Houston, TX)
Sponsoring Org.:
USDOE
OSTI Identifier:
988835
Patent Number(s):
7585420
Application Number:
11/300,031
Assignee:
William Marsh Rice University (Houston, TX)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
DOE Contract Number:  
FWP ERKCS04
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Wang, Yuhuang, Hauge, Robert H, Schmidt, Howard K, Kim, Myung Jong, and Kittrell, W Carter. Carbon nanotube substrates and catalyzed hot stamp for polishing and patterning the substrates. United States: N. p., 2009. Web.
Wang, Yuhuang, Hauge, Robert H, Schmidt, Howard K, Kim, Myung Jong, & Kittrell, W Carter. Carbon nanotube substrates and catalyzed hot stamp for polishing and patterning the substrates. United States.
Wang, Yuhuang, Hauge, Robert H, Schmidt, Howard K, Kim, Myung Jong, and Kittrell, W Carter. Tue . "Carbon nanotube substrates and catalyzed hot stamp for polishing and patterning the substrates". United States. https://www.osti.gov/servlets/purl/988835.
@article{osti_988835,
title = {Carbon nanotube substrates and catalyzed hot stamp for polishing and patterning the substrates},
author = {Wang, Yuhuang and Hauge, Robert H and Schmidt, Howard K and Kim, Myung Jong and Kittrell, W Carter},
abstractNote = {The present invention is generally directed to catalyzed hot stamp methods for polishing and/or patterning carbon nanotube-containing substrates. In some embodiments, the substrate, as a carbon nanotube fiber end, is brought into contact with a hot stamp (typically at 200-800.degree. C.), and is kept in contact with the hot stamp until the morphology/patterns on the hot stamp have been transferred to the substrate. In some embodiments, the hot stamp is made of material comprising one or more transition metals (Fe, Ni, Co, Pt, Ag, Au, etc.), which can catalyze the etching reaction of carbon with H.sub.2, CO.sub.2, H.sub.2O, and/or O.sub.2. Such methods can (1) polish the carbon nanotube-containing substrate with a microscopically smooth finish, and/or (2) transfer pre-defined patterns from the hot stamp to the substrate. Such polished or patterned carbon nanotube substrates can find application as carbon nanotube electrodes, field emitters, and field emitter arrays for displays and electron sources.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {9}
}

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Works referenced in this record:

Carbon Nanotubes--the Route Toward Applications
journal, August 2002


Functionalization of Carbon Nanotubes by Electrochemical Reduction of Aryl Diazonium Salts:  A Bucky Paper Electrode
journal, July 2001


Identification of Large Fullerenes Formed during the Growth of Single-Walled Carbon Nanotubes in the HiPco Process
journal, February 2003


Continued Growth of Single-Walled Carbon Nanotubes
journal, June 2005


Single-shell carbon nanotubes of 1-nm diameter
journal, June 1993


Purification and Characterization of Single-Wall Carbon Nanotubes (SWNTs) Obtained from the Gas-Phase Decomposition of CO (HiPco Process)
journal, September 2001


Crystalline Ropes of Metallic Carbon Nanotubes
journal, July 1996


Gas-phase catalytic growth of single-walled carbon nanotubes from carbon monoxide
journal, November 1999


Cobalt-catalysed growth of carbon nanotubes with single-atomic-layer walls
journal, June 1993


Controlled Oxidative Cutting of Single-Walled Carbon Nanotubes
journal, February 2005


Purification and Characterization of Single-Wall Carbon Nanotubes
journal, February 2001


Macroscopic, Neat, Single-Walled Carbon Nanotube Fibers
journal, September 2004


Phase Behavior and Rheology of SWNTs in Superacids
journal, January 2004


Gas-phase production of carbon single-walled nanotubes from carbon monoxide via the HiPco process: A parametric study
journal, July 2001

  • Bronikowski, Michael J.; Willis, Peter A.; Colbert, Daniel T.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 19, Issue 4
  • https://doi.org/10.1116/1.1380721

Helical microtubules of graphitic carbon
journal, November 1991


Concomitant Length and Diameter Separation of Single-Walled Carbon Nanotubes
journal, November 2004


Separation of Metallic from Semiconducting Single-Walled Carbon Nanotubes
journal, July 2003


Functionalization of Carbon Nanotubes by Free Radicals
journal, May 2003