Fabrication of BaTiO3-Y:EU composite micropatterns by combination of laser induced pyrolysis method and nanocrystalline seeding technique

Y. Kobayashi, N. Shimizu, D. Nagao, A. Watanabe, M. Konno

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

This paper describes a method for fabricating dielectric BaTiO3 (BT) micropatterns seeded with BT nanocrystalline particles and Y:Eu compound nanoparticles. The method is a combination of a laser induced pyrolysis method and a nanocrystalline seeding technique. The BT particles were prepared by hydrolysis of BT complex alkoxide with polyvinylpyrolli done (PVP). The Y:Eu particles were prepared by homogeneous precipitation of Y(NO3) 3 and Eu(NO3)3 with PVP. A precursor film was fabricated spin-coating a solution containing BT complex alkoxide, the BT particles, the Y:Eu particles and PVP on Pt substrate. A micropattern with a line width of about 1-2 μm was fabricated by irradiating an Ar+ laser beam on the film, and then stripping laser unirradiated region with HCl aqueous solution. The micropattern containing 5 vol.-% BT particles and 5 vol.-% Y:Eu particles revealed luminescence at 614 nm derived from Eu3+. Its dielectric constant and dissipation factor attained 21·2 and 0·089 respectively.

Original languageEnglish
Pages (from-to)410-413
Number of pages4
JournalSurface Engineering
Volume27
Issue number6
DOIs
Publication statusPublished - 2011 Jul 1

Keywords

  • Barium titanate
  • Dielectric properties
  • Laser induced pyrolysis
  • Luminescence
  • Micropattern
  • YO :EU

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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