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

doi:10.1016/S0040-6090(02)00779-4

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

Department of Electrical and Electronic Engineering

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

64 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	173-177
Number of pages	5
Journal	Thin Solid Films
Volume	419
Issue number	1-2
DOIs	https://doi.org/10.1016/S0040-6090(02)00779-4
Publication status	Published - 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

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10.1016/S0040-6090(02)00779-4

Cite this

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abstract = "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.",

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AU - Kim, H. S.

AU - Sohn, B. H.

AU - Lee, W.

AU - Lee, J. K.

AU - Choi, S. J.

AU - Kwon, S. J.

N1 - 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.

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N2 - 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.

AB - 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.

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

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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