Electrical conductivity and electromagnetic interference shielding of multiwalled carbon nanotube composites containing Fe catalyst

H. M. Kim; K. Kim; C. Y. Lee; J. Joo; S. J. Cho; H. S. Yoon; D. A. Pejaković; J. W. Yoo; A. J. Epstein

doi:10.1063/1.1641167

Electrical conductivity and electromagnetic interference shielding of multiwalled carbon nanotube composites containing Fe catalyst

H. M. Kim, K. Kim, C. Y. Lee, J. Joo, S. J. Cho, H. S. Yoon, D. A. Pejaković, J. W. Yoo, A. J. Epstein

Department of Physics

Research output: Contribution to journal › Article › peer-review

565 Citations (Scopus)

Abstract

The thin and flexible films of multiwalled carbon nanotubes (MWCNT) and poly(methylmethacrylate) (PMMA) composites were synthesized for electromagnetic interference (EMI) shielding materials. The formation of a conducting network through MWCNTs in an insulating PMMA matrix and the existence of Fe catalyst in MWCNTs were observed. It was shown that the dc conductivity of the systems increased with increasing MWCNT mass fraction, showing typical percolation behavior. The results show that the highest EMI shielding efficiency (SE) for raw MWCNT-PMMA composites was ∼27 dB, indicating commercial use for far-field EMI shielding.

Original language	English
Pages (from-to)	589-591
Number of pages	3
Journal	Applied Physics Letters
Volume	84
Issue number	4
DOIs	https://doi.org/10.1063/1.1641167
Publication status	Published - 2004 Jan 26

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Electrical conductivity and electromagnetic interference shielding of multiwalled carbon nanotube composites containing Fe catalyst",

abstract = "The thin and flexible films of multiwalled carbon nanotubes (MWCNT) and poly(methylmethacrylate) (PMMA) composites were synthesized for electromagnetic interference (EMI) shielding materials. The formation of a conducting network through MWCNTs in an insulating PMMA matrix and the existence of Fe catalyst in MWCNTs were observed. It was shown that the dc conductivity of the systems increased with increasing MWCNT mass fraction, showing typical percolation behavior. The results show that the highest EMI shielding efficiency (SE) for raw MWCNT-PMMA composites was ∼27 dB, indicating commercial use for far-field EMI shielding.",

author = "Kim, {H. M.} and K. Kim and Lee, {C. Y.} and J. Joo and Cho, {S. J.} and Yoon, {H. S.} and Pejakovi{\'c}, {D. A.} and Yoo, {J. W.} and Epstein, {A. J.}",

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T1 - Electrical conductivity and electromagnetic interference shielding of multiwalled carbon nanotube composites containing Fe catalyst

AU - Kim, H. M.

AU - Kim, K.

AU - Lee, C. Y.

AU - Joo, J.

AU - Cho, S. J.

AU - Yoon, H. S.

AU - Pejaković, D. A.

AU - Yoo, J. W.

AU - Epstein, A. J.

PY - 2004/1/26

Y1 - 2004/1/26

N2 - The thin and flexible films of multiwalled carbon nanotubes (MWCNT) and poly(methylmethacrylate) (PMMA) composites were synthesized for electromagnetic interference (EMI) shielding materials. The formation of a conducting network through MWCNTs in an insulating PMMA matrix and the existence of Fe catalyst in MWCNTs were observed. It was shown that the dc conductivity of the systems increased with increasing MWCNT mass fraction, showing typical percolation behavior. The results show that the highest EMI shielding efficiency (SE) for raw MWCNT-PMMA composites was ∼27 dB, indicating commercial use for far-field EMI shielding.

AB - The thin and flexible films of multiwalled carbon nanotubes (MWCNT) and poly(methylmethacrylate) (PMMA) composites were synthesized for electromagnetic interference (EMI) shielding materials. The formation of a conducting network through MWCNTs in an insulating PMMA matrix and the existence of Fe catalyst in MWCNTs were observed. It was shown that the dc conductivity of the systems increased with increasing MWCNT mass fraction, showing typical percolation behavior. The results show that the highest EMI shielding efficiency (SE) for raw MWCNT-PMMA composites was ∼27 dB, indicating commercial use for far-field EMI shielding.

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Electrical conductivity and electromagnetic interference shielding of multiwalled carbon nanotube composites containing Fe catalyst

Abstract

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