Direct assembly of BaTiO3-poly(methyl methacrylate) nanocomposite films

Dong Wan Kim, Du Hee Lee, Byung Kook Kim, Hae June Je, Jae Gwan Park

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

This study examines the use of a PMMA-mediated assembly of BaTiO 3 nanoparticles directly onto Cu electrodes under an electric field. The compatibility of the interface between BaTiO3 nanoparticles and PMMA in a mixed organic solvent system enables the homogeneous dispersion of nanoparticles in a solid polymer matrix. This results in the effective packing of particles, which is desirable from the point of view of achieving a high dielectric constant in the composite. In this study, three-phase Al/BaTiO 3/PMMA nanocomposite films from stable colloidal suspensions containing aluminium nitrate salts were also designed using an electrodeposition process. The simultaneous formation of Al metallic inclusions in the BaTiO 3 nanoparticles in the PMMA matrix significantly improved the dielectric constant of nanocomposite films.

Original languageEnglish
Pages (from-to)1821-1825
Number of pages5
JournalMacromolecular Rapid Communications
Volume27
Issue number21
DOIs
Publication statusPublished - 2006 Nov 1
Externally publishedYes

Keywords

  • Dielectric properties
  • Dispersions
  • Films
  • Inorganic materials
  • Nanocomposites

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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