Electromagnetic interference shielding characteristics of fabric complexes coated with conductive polypyrrole and thermally evaporated Ag

Y. K. Hong, C. Y. Lee, C. K. Jeong, J. H. Sim, K. Kim, Jinsoo Joo, M. S. Kim, J. Y. Lee, S. H. Jeong, S. W. Byun

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

Through the chemical coating of polypyrrole (PPy) doped with naphthalene sulfonic acid (NSA) on electrically insulating poly (ethylene terephthalate) (PET) woven fabric, PPy-NSA/PET complexes were synthesized. By using the electrochemical coating of PPy doped anthraquinone-2-sulfonic acid (AQSA) on PPy-NSA/PET complexes, PPy-AQSA/PPy-NSA/PET complexes were synthesized. The silver (Ag) was thermally vacuum evaporated on the surface of PPy-AQSA/PPy-NSA/PET complexes (Ag|PPy-AQSA/PPy-NSA/PET). Electromagnetic interference (EMI) shielding efficiency (SE) and dc conductivity (σdc) of fabric complexes were measured for EMI shielding characteristics and theoretical simulation. The measurement of EMI SE in the frequency range from 50 MHz to 1.5 GHz was performed by using ASTM D4935-99 method. The EMI shielding characteristics such as transmittance, reflectance and absorbance were obtained from the S (scattering)-parameter analysis. We control the contribution of the absorbance or the reflectance to total EMI SE through the coating of conductive PPy and the evaporation Ag.

Original languageEnglish
Pages (from-to)439-442
Number of pages4
JournalCurrent Applied Physics
Volume1
Issue number6
DOIs
Publication statusPublished - 2001 Dec 1

Fingerprint

electromagnetic interference
polypyrroles
Polypyrroles
Signal interference
sulfonic acid
Shielding
shielding
Sulfonic Acids
Naphthalene
Acids
naphthalene
anthraquinones
coatings
Coatings
polypyrrole
reflectance
Polyethylene Terephthalates
polyethylene terephthalate
Scattering parameters
Silver

Keywords

  • 07.50.Hp
  • 42.25.Bs
  • 82.35.Cd
  • Absorption
  • EMI(electromagnetic interference)
  • Fabric
  • Polypyrrole
  • Shielding

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Electromagnetic interference shielding characteristics of fabric complexes coated with conductive polypyrrole and thermally evaporated Ag. / Hong, Y. K.; Lee, C. Y.; Jeong, C. K.; Sim, J. H.; Kim, K.; Joo, Jinsoo; Kim, M. S.; Lee, J. Y.; Jeong, S. H.; Byun, S. W.

In: Current Applied Physics, Vol. 1, No. 6, 01.12.2001, p. 439-442.

Research output: Contribution to journalArticle

Hong, Y. K. ; Lee, C. Y. ; Jeong, C. K. ; Sim, J. H. ; Kim, K. ; Joo, Jinsoo ; Kim, M. S. ; Lee, J. Y. ; Jeong, S. H. ; Byun, S. W. / Electromagnetic interference shielding characteristics of fabric complexes coated with conductive polypyrrole and thermally evaporated Ag. In: Current Applied Physics. 2001 ; Vol. 1, No. 6. pp. 439-442.
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