| Sol-gel derived nanocrystalline and mesoporous barium strontium titanate prepared at room temperature |
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| 作者姓名： | Mohammad Reza Mohammadi Derek J.Fray |
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| 作者单位： | Department of Materials Science & Engineering;Sharif University of Technology;Department of Materials Science & Metallurgy;University of Cambridge; |
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| 摘 要： | Perovskite-type barium strontium titanate(BST) thin films and powders with nanocrystalline and mesoporous structure were prepared by a straightforward particulate sol-gel route at room temperature. The prepared sol had a narrow particle size distribution of about 20 nm. X-ray diffraction(XRD) revealed that phase composition and preferable orientation growth of BST depended upon the annealing temperature. Transmission electron microscope(TEM) images showed that the crystallite size of the powders decreased w...
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| 关 键 词： | Barium strontium titanate Room temperature Sol–gel chemistry Nanostructure |
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