期刊
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
卷 52, 期 1, 页码 120-123出版社
SPRINGER
DOI: 10.1007/s10971-009-1995-1
关键词
Nanotubes; Sol-gel growth; X-ray diffraction; Microstructure
资金
- National Natural Science Foundation of China [50502013, 50872024]
- Harbin Institute of Technology
- Natural Science Foundation of Hei-longjiang province [QC05C06]
Ferroelectric SrBi2Ta2O9 nanotubes were fabricated by sol-gel dipping template technique and characterized by X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy. They had a single orthorhombic perovskite structure, and most of SBT nanotubes showed highly preferential crystal growth along the [115] orientation. FE-SEM and TEM investigations showed that nanotubes have smooth wall morphologies and well-defined diameters corresponding to the diameter of the applied template. From HRTEM results, the clear lattice fringes indicated that the nanotubes are structurally uniform and well crystallized. The growth mechanisms of SBT nanotubes into the AAO templates were explored.
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