Multifunctional layer-by-layer self-assembly of conducting polymers and magnetic nanoparticles

H. S. Kim, B. H. Sohn, W. Lee, J. K. Lee, S. J. Choi, S. J. Kwon

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)


Multifunctional thin films having both electrical conductivity and ferrimagnetic properties were successfully fabricated by the layer-by-layer self-assembling (LBL-SA) method, i.e. successive ionic adsorption of polypyrrole (PPy) and ferrite nanoparticles from their aqueous solutions. Using an ellipsometer, a constant increase of the film thickness by each deposition was characterized, implying a controllable process of the LBL-SA for multifunctional thin films. Uniformly distributed ferrite nanoparticles in the thin film were also observed in scanning and transmission electron microscopic images. The thin film consisting of six PPy and two ferrite nanoparticle layers had a conductivity of 0.18 S/cm and simultaneously showed a magnetic hysteresis.

Original languageEnglish
Pages (from-to)173-177
Number of pages5
JournalThin Solid Films
Issue number1-2
Publication statusPublished - 2002 Nov 1

Bibliographical note

Funding Information:
This work was supported by the POSTECH and BSRI research fund. Facility support from the Center for Integrated Molecular System is gratefully acknowledged.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


Dive into the research topics of 'Multifunctional layer-by-layer self-assembly of conducting polymers and magnetic nanoparticles'. Together they form a unique fingerprint.

Cite this