Publication date: 1 October 2016
Source:Thin Solid Films, Volume 616
Author(s): Tao Hu, Zongrong Wang, Ning Ma, Piyi Du
Ag nanoparticles were formed in PbZr0.52 Ti0.48 O3 (PZT) thin films by the sol–gel technique through two stage processes. In the first stage, Ag-Pb alloy particles formed in all film heat treated for different time from 1 min to 10 min. The average size of the particles increased from 0.16 μm to 0.43 μm while the mole ratio of Pb/(Pb + Ag) in the alloy particles increased from 0.7% to 27%. After that in the second stage with the heat treatment time above 10 min, the lead rich Ag-Pb alloy particles started to decompose gradually. The silver nanoparticles formed in the thin film to form nano-Ag/PZT composite. The number of the silver nanoparticles of about 6 nm in size increased with increasing the heat treatment time from 20 min to 180 min. The permittivity and tunability of the nano-Ag/PZT composite thin film were 120% and 46% higher than those of the PZT thin film without Ag nanoparticles, respectively.
Source:Thin Solid Films, Volume 616
Author(s): Tao Hu, Zongrong Wang, Ning Ma, Piyi Du