Charge transport properties of composites of multiwalled carbon nanotube with metal catalyst and polymer: Application to electromagnetic interference shielding

H. M. Kim, K. Kim, S. J. Lee, Jinsoo Joo, H. S. Yoon, S. J. Cho, S. C. Lyu, Cheol Jin Lee

Research output: Contribution to journalArticle

82 Citations (Scopus)

Abstract

We report charge transport properties such as d.c. conductivity (σDC) and its temperature dependence for composites of poly(methyl methacrylate) (PMMA) and multiwalled carbon nanotubes (MWCNTs). The MWCNTs were synthesized through chemical vapor deposition with Fe or Co as catalyst. The MWCNTs were homogeneously dispersed in PMMA matrix through sonication to prepare MWCNT-PMMA composite films. We controlled mass concentration of MWCNTs in the composites, and the thickness of MWCNT-PMMA composite films was 20-400 μm. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Raman spectroscopy were used to study structure and homogeneity of the composites. The σDC at room temperature of MWCNT- PMMA composites increased as mass concentration of MWCNTs increased, which followed percolation theory. Electromagnetic interference (EMI) shielding efficiency (SE) of MWCNT-PMMA composites was measured in the frequency range of 50 MHz-3.5 GHz. We observed the increase of EMI SE of MWCNT-PMMA composites with increasing the concentration of MWCNTs.

Original languageEnglish
Pages (from-to)577-580
Number of pages4
JournalCurrent Applied Physics
Volume4
Issue number6
DOIs
Publication statusPublished - 2004 Nov 1

Fingerprint

electromagnetic interference
Multiwalled carbon nanotubes (MWCN)
Signal interference
Shielding
Transport properties
shielding
Charge transfer
Polymers
transport properties
Metals
carbon nanotubes
Polymethyl Methacrylate
catalysts
Polymethyl methacrylates
polymethyl methacrylate
Catalysts
composite materials
Composite materials
polymers
metals

Keywords

  • Composite
  • Electrical conductivity
  • Electromagnetic interference shielding
  • Multiwalled carbon nanotube

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Charge transport properties of composites of multiwalled carbon nanotube with metal catalyst and polymer : Application to electromagnetic interference shielding. / Kim, H. M.; Kim, K.; Lee, S. J.; Joo, Jinsoo; Yoon, H. S.; Cho, S. J.; Lyu, S. C.; Lee, Cheol Jin.

In: Current Applied Physics, Vol. 4, No. 6, 01.11.2004, p. 577-580.

Research output: Contribution to journalArticle

@article{1793720c5cef4a11a0040952856dba2f,
title = "Charge transport properties of composites of multiwalled carbon nanotube with metal catalyst and polymer: Application to electromagnetic interference shielding",
abstract = "We report charge transport properties such as d.c. conductivity (σDC) and its temperature dependence for composites of poly(methyl methacrylate) (PMMA) and multiwalled carbon nanotubes (MWCNTs). The MWCNTs were synthesized through chemical vapor deposition with Fe or Co as catalyst. The MWCNTs were homogeneously dispersed in PMMA matrix through sonication to prepare MWCNT-PMMA composite films. We controlled mass concentration of MWCNTs in the composites, and the thickness of MWCNT-PMMA composite films was 20-400 μm. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Raman spectroscopy were used to study structure and homogeneity of the composites. The σDC at room temperature of MWCNT- PMMA composites increased as mass concentration of MWCNTs increased, which followed percolation theory. Electromagnetic interference (EMI) shielding efficiency (SE) of MWCNT-PMMA composites was measured in the frequency range of 50 MHz-3.5 GHz. We observed the increase of EMI SE of MWCNT-PMMA composites with increasing the concentration of MWCNTs.",
keywords = "Composite, Electrical conductivity, Electromagnetic interference shielding, Multiwalled carbon nanotube",
author = "Kim, {H. M.} and K. Kim and Lee, {S. J.} and Jinsoo Joo and Yoon, {H. S.} and Cho, {S. J.} and Lyu, {S. C.} and Lee, {Cheol Jin}",
year = "2004",
month = "11",
day = "1",
doi = "10.1016/j.cap.2004.01.022",
language = "English",
volume = "4",
pages = "577--580",
journal = "Current Applied Physics",
issn = "1567-1739",
publisher = "Elsevier",
number = "6",

}

TY - JOUR

T1 - Charge transport properties of composites of multiwalled carbon nanotube with metal catalyst and polymer

T2 - Application to electromagnetic interference shielding

AU - Kim, H. M.

AU - Kim, K.

AU - Lee, S. J.

AU - Joo, Jinsoo

AU - Yoon, H. S.

AU - Cho, S. J.

AU - Lyu, S. C.

AU - Lee, Cheol Jin

PY - 2004/11/1

Y1 - 2004/11/1

N2 - We report charge transport properties such as d.c. conductivity (σDC) and its temperature dependence for composites of poly(methyl methacrylate) (PMMA) and multiwalled carbon nanotubes (MWCNTs). The MWCNTs were synthesized through chemical vapor deposition with Fe or Co as catalyst. The MWCNTs were homogeneously dispersed in PMMA matrix through sonication to prepare MWCNT-PMMA composite films. We controlled mass concentration of MWCNTs in the composites, and the thickness of MWCNT-PMMA composite films was 20-400 μm. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Raman spectroscopy were used to study structure and homogeneity of the composites. The σDC at room temperature of MWCNT- PMMA composites increased as mass concentration of MWCNTs increased, which followed percolation theory. Electromagnetic interference (EMI) shielding efficiency (SE) of MWCNT-PMMA composites was measured in the frequency range of 50 MHz-3.5 GHz. We observed the increase of EMI SE of MWCNT-PMMA composites with increasing the concentration of MWCNTs.

AB - We report charge transport properties such as d.c. conductivity (σDC) and its temperature dependence for composites of poly(methyl methacrylate) (PMMA) and multiwalled carbon nanotubes (MWCNTs). The MWCNTs were synthesized through chemical vapor deposition with Fe or Co as catalyst. The MWCNTs were homogeneously dispersed in PMMA matrix through sonication to prepare MWCNT-PMMA composite films. We controlled mass concentration of MWCNTs in the composites, and the thickness of MWCNT-PMMA composite films was 20-400 μm. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Raman spectroscopy were used to study structure and homogeneity of the composites. The σDC at room temperature of MWCNT- PMMA composites increased as mass concentration of MWCNTs increased, which followed percolation theory. Electromagnetic interference (EMI) shielding efficiency (SE) of MWCNT-PMMA composites was measured in the frequency range of 50 MHz-3.5 GHz. We observed the increase of EMI SE of MWCNT-PMMA composites with increasing the concentration of MWCNTs.

KW - Composite

KW - Electrical conductivity

KW - Electromagnetic interference shielding

KW - Multiwalled carbon nanotube

UR - http://www.scopus.com/inward/record.url?scp=5144234290&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=5144234290&partnerID=8YFLogxK

U2 - 10.1016/j.cap.2004.01.022

DO - 10.1016/j.cap.2004.01.022

M3 - Article

AN - SCOPUS:5144234290

VL - 4

SP - 577

EP - 580

JO - Current Applied Physics

JF - Current Applied Physics

SN - 1567-1739

IS - 6

ER -