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- E-ISSN 2288-8985
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Preparation and Characterization of BaTiO3 Powders and Thin films
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2004, v.17 no.2, pp.173-179
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(2004). Preparation and Characterization of BaTiO3 Powders and Thin films. Analytical Science and Technology, 17(2), 173-179.
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Abstract
The BaTiO3 powders and thin films were prepared by an alkoxide modified sol-gel process (polymerization-complex route) using ethylene glycol. The stable starting (Ba-Ti)-mixed metal organic sol was made by addition of acetylacetone. The BaTiO3 powders, which had a particle size of 40∼77 nm, were crystallized from an amorphous to a tetragonal phase on annealing at 700 and 1100 for 1 h. From FT-IR, solid-state 13C CP/MAS NMR spectroscopy and X-ray diffractometry, the trace of the Ba-Ti-oxycarbonate phase first appeared at 400 .Hydrolyzed sol was spin coated on a quartz wafer at 3500 rpm for 60 s and pyrolyzed at 1100 for 1 h. After heat treatment, the coated layer became dense and smooth.
- keywords
- <TEX>$BaTiO_3$</TEX>, FT-IR, CP/MAS <TEX>$^{13}C$</TEX> NMR, Refractive Index, Ellipsometry
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