Nanocomposite films of lead zirconate titanate and metallic nickel by sol-gel route

26 June 1995

journal article
research article
Published by AIP Publishing in Applied Physics Letters

Vol. 66 (26) , 3576-3578
https://doi.org/10.1063/1.113792

Abstract

Films of composition 0.27 PbO, 0.24 ZrO₂, 0.27 TiO₂, 0.22 NiO, and containing micrometer sized lead zirconate titanate (PZT) crystallites and nanometer sized nickel particles have been synthesized by a sol‐gel technique. Metal particles have diameters in the range 2.0–7.6 nm. The films exhibit values of dielectric constant in the range 220–410 at a frequency of 1 kHz at room temperature. The optical absorption coefficient of the films shows a peak at ∼400 nm. The peak position shifts to higher wavelengths as the metal particle size is increased. The Mie theory is used to explain the results.

Keywords

PZT
NICKEL
COMPOSITE MATERIALS
SOL−GEL PROCESS
DIELECTRIC FUNCTION
ABSORPTION
OPTICAL PROPERTIES
MIE SCATTERING
NANOSTRUCTURES

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