Abstract
AbstractSummary: This study examines the use of a PMMA‐mediated assembly of BaTiO3 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/BaTiO3/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 BaTiO3 nanoparticles in the PMMA matrix significantly improved the dielectric constant of nanocomposite films.HRTEM micrographs of BaTiO3 (240 nm)/PMMA and magnified view of BaTiO3 (50 nm)/PMMA/Al(NO3)3 · 9H2O composite particles in each suspension, and FESEM micrograph of electrodeposited three‐phase nanocomposite film.magnified imageHRTEM micrographs of BaTiO3 (240 nm)/PMMA and magnified view of BaTiO3 (50 nm)/PMMA/Al(NO3)3 · 9H2O composite particles in each suspension, and FESEM micrograph of electrodeposited three‐phase nanocomposite film.
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