Ta(OR)5 (R = Me(1), Et(2), Bun(3)) and Ta2O(OPri)8·PriOH (4) were obtained by the anodic oxidation of metallic tantalum in absolute alcohols in the presence of LiCl (electroconductive additive). Ta(OPri)5 (5) was isolated by distillation in the course of thermolysis of 4 under reduced pressure. Ta(OC2H4OMe)5 (6) was obtained by reaction of 5 with 2-methoxyethanol. Compounds 1 and 5 are isostructural
PhasepureBa(Mg13Ta23O3 (BMT) powders were prepared using Ba metal, Mg(OC2H5)2, and Ta(OC2H5)5 as metal-organic precursors. Thinfilms of BMT were spin coated onto Pt-coated Si(100) substrates using the prepared solution and then fired at various temperatures. The X-ray diffraction patterns show that the films crystallize to a single disordered perovskite phase on Si (100) at ~600 °C. Scanning electron
使用 Ba 金属、Mg(OC2H5)2 和 Ta(OC2H5)5 作为金属有机前驱体制备相纯 Ba(Mg13Ta23O3 (BMT) 粉末。使用 BMT 薄膜旋涂到 Pt 涂层的 Si(100) 基板上制备的溶液,然后在不同温度下烧制。X 射线衍射图表明,薄膜在~600 °C 下在 Si (100) 上结晶成单一无序钙钛矿相。扫描电子显微镜显示薄膜厚度为 0.3 μm,并且大约 0.1 μm 的晶粒尺寸基本无裂纹。