Due to their excellent compliance and high thermal conductivity, dry carbon nanotube (CNT) array interfaces are promising candidates to address the thermal management needs of power dense microelectronic components and devices. However, typical CNT growth temperatures limit the substrates available for direct CNT synthesis. A microwave plasma chemical vapor deposition and a shielded growth technique were used to synthesize CNT arrays at various temperatures on silicon wafers. Measured growth surface temperatures ranged from . The room-temperature thermal resistances of interfaces created by placing the CNT covered wafers in contact with silver foil (silicon-CNT-silver) were measured using a photoacoustic technique to range from approximately at moderate pressures. Thermal resistances increased as CNT array growth temperature decreased primarily due to a reduction in the average diameter of CNTs in the arrays.
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November 2008
This article was originally published in
Journal of Heat Transfer
Technical Briefs
Effects of Growth Temperature on Carbon Nanotube Array Thermal Interfaces
Baratunde A. Cola,
Baratunde A. Cola
School of Mechanical Engineering and Birck Nanotechnology Center,
Purdue University
, West Lafayette, IN 47907
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Placidus B. Amama,
Placidus B. Amama
School of Mechanical Engineering and Birck Nanotechnology Center,
Purdue University
, West Lafayette, IN 47907
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Xianfan Xu,
Xianfan Xu
School of Mechanical Engineering and Birck Nanotechnology Center,
Purdue University
, West Lafayette, IN 47907
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Timothy S. Fisher
Timothy S. Fisher
School of Mechanical Engineering and Birck Nanotechnology Center,
e-mail: tsfisher@purdue.edu
Purdue University
, West Lafayette, IN 47907
Search for other works by this author on:
Baratunde A. Cola
School of Mechanical Engineering and Birck Nanotechnology Center,
Purdue University
, West Lafayette, IN 47907
Placidus B. Amama
School of Mechanical Engineering and Birck Nanotechnology Center,
Purdue University
, West Lafayette, IN 47907
Xianfan Xu
School of Mechanical Engineering and Birck Nanotechnology Center,
Purdue University
, West Lafayette, IN 47907
Timothy S. Fisher
School of Mechanical Engineering and Birck Nanotechnology Center,
Purdue University
, West Lafayette, IN 47907e-mail: tsfisher@purdue.edu
J. Heat Transfer. Nov 2008, 130(11): 114503 (4 pages)
Published Online: September 2, 2008
Article history
Received:
July 6, 2007
Revised:
June 17, 2008
Published:
September 2, 2008
Citation
Cola, B. A., Amama, P. B., Xu, X., and Fisher, T. S. (September 2, 2008). "Effects of Growth Temperature on Carbon Nanotube Array Thermal Interfaces." ASME. J. Heat Transfer. November 2008; 130(11): 114503. https://doi.org/10.1115/1.2969758
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