Electrical properties of single wall carbon nanotube reinforced polyimide composites

Z. Ounaies; C. Park; K. E. Wise; E. J. Siochi; J. S. Harrison

doi:10.1016/S0266-3538(03)00067-8

Electrical properties of single wall carbon nanotube reinforced polyimide composites

Z. Ounaies, C. Park, K. E. Wise, E. J. Siochi, J. S. Harrison

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645 Scopus citations

Abstract

Electrical properties of single wall carbon nanotube (SWNT) reinforced polyimide composites were investigated as a function of SWNT concentration. AC and DC conductivities were measured, and the frequency behavior of the specific admittance was investigated. The experimental conductivity was found to obey a percolation-like power law with a relatively low percolation threshold. The current-voltage measurement results exhibited a non-ohmic behavior, indicating a quantum tunneling conduction mechanism. Analytical modeling and numerical simulation using high aspect ratio, rigid, spherocylinders as models for the SWNT were carried out to aid in understanding these results. The predictions were in good agreement with the experimental results. Published by Elsevier Ltd.

Original language	English (US)
Pages (from-to)	1637-1646
Number of pages	10
Journal	Composites Science and Technology
Volume	63
Issue number	11
DOIs	https://doi.org/10.1016/S0266-3538(03)00067-8
State	Published - Aug 2003

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Engineering(all)

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10.1016/S0266-3538(03)00067-8

Cite this

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title = "Electrical properties of single wall carbon nanotube reinforced polyimide composites",

abstract = "Electrical properties of single wall carbon nanotube (SWNT) reinforced polyimide composites were investigated as a function of SWNT concentration. AC and DC conductivities were measured, and the frequency behavior of the specific admittance was investigated. The experimental conductivity was found to obey a percolation-like power law with a relatively low percolation threshold. The current-voltage measurement results exhibited a non-ohmic behavior, indicating a quantum tunneling conduction mechanism. Analytical modeling and numerical simulation using high aspect ratio, rigid, spherocylinders as models for the SWNT were carried out to aid in understanding these results. The predictions were in good agreement with the experimental results. Published by Elsevier Ltd.",

author = "Z. Ounaies and C. Park and Wise, {K. E.} and Siochi, {E. J.} and Harrison, {J. S.}",

note = "Funding Information: The authors would like to acknowledge Mr. David Callahan, Virginia Commonwealth University, for assistance in gathering some of the conductivity data. This work is supported in part by NASA Grant NCC1-02013.",

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T1 - Electrical properties of single wall carbon nanotube reinforced polyimide composites

AU - Ounaies, Z.

AU - Park, C.

AU - Wise, K. E.

AU - Siochi, E. J.

AU - Harrison, J. S.

N1 - Funding Information: The authors would like to acknowledge Mr. David Callahan, Virginia Commonwealth University, for assistance in gathering some of the conductivity data. This work is supported in part by NASA Grant NCC1-02013.

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N2 - Electrical properties of single wall carbon nanotube (SWNT) reinforced polyimide composites were investigated as a function of SWNT concentration. AC and DC conductivities were measured, and the frequency behavior of the specific admittance was investigated. The experimental conductivity was found to obey a percolation-like power law with a relatively low percolation threshold. The current-voltage measurement results exhibited a non-ohmic behavior, indicating a quantum tunneling conduction mechanism. Analytical modeling and numerical simulation using high aspect ratio, rigid, spherocylinders as models for the SWNT were carried out to aid in understanding these results. The predictions were in good agreement with the experimental results. Published by Elsevier Ltd.

AB - Electrical properties of single wall carbon nanotube (SWNT) reinforced polyimide composites were investigated as a function of SWNT concentration. AC and DC conductivities were measured, and the frequency behavior of the specific admittance was investigated. The experimental conductivity was found to obey a percolation-like power law with a relatively low percolation threshold. The current-voltage measurement results exhibited a non-ohmic behavior, indicating a quantum tunneling conduction mechanism. Analytical modeling and numerical simulation using high aspect ratio, rigid, spherocylinders as models for the SWNT were carried out to aid in understanding these results. The predictions were in good agreement with the experimental results. Published by Elsevier Ltd.

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Electrical properties of single wall carbon nanotube reinforced polyimide composites

Abstract

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