TITLE

Ag nanoparticle dispersed PbTiO3 percolative composite thin film with high permittivity

AUTHOR(S)
Zongrong Wang; Tao Hu; Liwen Tang; Ning Ma; Chenlu Song; Gaorong Han; Wenjian Weng; Piyi Du
PUB. DATE
December 2008
SOURCE
Applied Physics Letters;12/1/2008, Vol. 93 Issue 22, p222901
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Ag nanoparticle dispersed PbTiO3 percolative composite thin films were prepared in situ by sol-gel method using Pb(NO3)2, Ti(C4H9O)4, and AgNO3 as raw materials and lactic acid along with citric acid as complexing agent. The size of the Ag nanoparticles measured by ultraviolet-visible spectra is about 3 nm. The percolation effect occurs in composite thin films. The composite exhibits relatively high dielectric constant which is about five times higher than that of PbTiO3 thin film and comparatively low dielectric loss comparable to pure PbTiO3 system. It is highly attractive in application of high quality dielectric devices and miniaturization.
ACCESSION #
35763916

 

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