Title:
SYSTEM AND METHOD FOR LOW-POWER NANOTUBE GROWTH USING DIRECT RESISTIVE HEATING
Document Type and Number:
WIPO Patent Application WO/2009/128987
Kind Code:
A3
Abstract:
Direct resistive heating is used to grow nanotubes out of carbon and other materials. A growth-initiated array of nanotubes is provided using a CVD or ion implantation process. These processes use indirect heating to heat the catalysts to initiate growth. Once growth is initiated, an electrical source is connected between the substrate and a plate above the nanotubes to source electrical current through and resistively heat the nanotubes and their catalysts. A material source supplies the heated catalysts with carbon or another material to continue growth of the array of nanotubes. Once direct heating has commenced, the source of indirect heating can be removed or at least reduced. Because direct resistive heating is more efficient than indirect heating the total power consumption is reduced significantly.
Inventors:
BARKER DELMAR L (US)
JORDAN MEAD M (US)
OWENS WILLIAM R (US)
JORDAN MEAD M (US)
OWENS WILLIAM R (US)
Application Number:
PCT/US2009/035265
Publication Date:
December 16, 2010
Filing Date:
February 26, 2009
Export Citation:
Assignee:
RAYTHEON CO (US)
BARKER DELMAR L (US)
JORDAN MEAD M (US)
OWENS WILLIAM R (US)
BARKER DELMAR L (US)
JORDAN MEAD M (US)
OWENS WILLIAM R (US)
International Classes:
C01B31/02; C01B21/064; C01B31/36; C01B33/02; C01B35/02
Domestic Patent References:
| WO2007009112A2 | 2007-01-18 |
Other References:
CROCI M ET AL: "COLD ATMOSPHERE CVD: A SIMPLE METHOD FOR THE GROWTH OF CARBON NANOTUBES", CHEMICAL VAPOR DEPOSITION, WILEY-VCH VERLAG, WEINHEIM, DE LNKD- DOI:10.1002/1521-3862(20020503)8:3<89::AID-CVDE89>3.0.CO;2-E, vol. 8, no. 3, 1 May 2002 (2002-05-01), pages 89 - 92, XP001108626, ISSN: 0948-1907
DITTMER S ET AL: "Low ambient temperature CVD growth of carbon nanotubes", APPLIED PHYSICS A; MATERIALS SCIENCE & PROCESSING, SPRINGER, BERLIN, DE LNKD- DOI:10.1007/S00339-006-3614-0, vol. 84, no. 3, 17 May 2006 (2006-05-17), pages 243 - 246, XP019424398, ISSN: 1432-0630
CHEN Z ET AL: "Sandwich growth of carbon nanotubes", DIAMOND AND RELATED MATERIALS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL LNKD- DOI:10.1016/J.DIAMOND.2005.07.024, vol. 15, no. 1, 1 January 2006 (2006-01-01), pages 104 - 108, XP025141050, ISSN: 0925-9635, [retrieved on 20060101]
WEI BINGQING ET AL: "Lift-up growth of aligned carbon nanotube patterns", APPLIED PHYSICS LETTERS, AIP, AMERICAN INSTITUTE OF PHYSICS, MELVILLE, NY, US LNKD- DOI:10.1063/1.1323544, vol. 77, no. 19, 6 November 2000 (2000-11-06), pages 2985 - 2987, XP012026532, ISSN: 0003-6951
DITTMER S ET AL: "Low ambient temperature CVD growth of carbon nanotubes", APPLIED PHYSICS A; MATERIALS SCIENCE & PROCESSING, SPRINGER, BERLIN, DE LNKD- DOI:10.1007/S00339-006-3614-0, vol. 84, no. 3, 17 May 2006 (2006-05-17), pages 243 - 246, XP019424398, ISSN: 1432-0630
CHEN Z ET AL: "Sandwich growth of carbon nanotubes", DIAMOND AND RELATED MATERIALS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL LNKD- DOI:10.1016/J.DIAMOND.2005.07.024, vol. 15, no. 1, 1 January 2006 (2006-01-01), pages 104 - 108, XP025141050, ISSN: 0925-9635, [retrieved on 20060101]
WEI BINGQING ET AL: "Lift-up growth of aligned carbon nanotube patterns", APPLIED PHYSICS LETTERS, AIP, AMERICAN INSTITUTE OF PHYSICS, MELVILLE, NY, US LNKD- DOI:10.1063/1.1323544, vol. 77, no. 19, 6 November 2000 (2000-11-06), pages 2985 - 2987, XP012026532, ISSN: 0003-6951
Attorney, Agent or Firm:
GIFFORD, Eric, A. (11770 E. Calle del ValleTucson, AZ, US)
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