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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
Publication Date:
Research Org.:
William Marsh Rice University (Houston, TX)
Sponsoring Org.:
USDOE
OSTI Identifier:
988835
Patent Number(s):
7,585,420
Application Number:
11/300,031
Assignee:
William Marsh Rice University (Houston, TX) OSTI
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. doi:. 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 = {Tue Sep 08 00:00:00 EDT 2009},
month = {Tue Sep 08 00:00:00 EDT 2009}
}

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