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- W2349341146 abstract "Transparent Pb(Zr0.52Ti0.48)O3(PZT) doped silica nanocomposites were fabricated via a modified Sol - Gel process. The nanocomposites were annealed in different temperatures of 740~800℃ to yield nanometer - sized PZT crystallites with various crystallite sizes. XRD analysis indicated that the embedded PZT nanoparticles were crystallized with perovskite structure while the SiO2 matrix was still in an amorphous state. Photoluminescence(PL) spectra were measured at temperature ranging from 10K to room temperature. The undoped silica matrix showed a strong emission band at 3.2eV and a weak emission band at 2.65eV. They were noticeably suppressed in our PZT/SiO2 nanocomposites. An additional emission band at 2.3eV due to transition within the PZT crystallites was also observed. This emission band showed a large blueshift with decreasing PZT crystallite size. This demonstrates that the PL spectra of ferroelectric nanoparticle - doped silica have a strong dependence on crystallite size." @default.
- W2349341146 created "2016-06-24" @default.
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- W2349341146 date "2002-01-01" @default.
- W2349341146 modified "2023-09-28" @default.
- W2349341146 title "Low Temperature Photoluminscence Characteristics of PZT/SiO_2 Transparent Nancomposites" @default.
- W2349341146 hasPublicationYear "2002" @default.
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