Sol–gel synthesis of Bi3.25La0.75Ti3O12 nanotubes
2011
Abstract Ferroelectric Bi 3.25 La 0.75 Ti 3 O 12 (BLT) nanotubes were synthesized by sol–gel technique using nanochannel porous anodic aluminum oxide (AAO) templates, and were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM). BLT nanotubes with diameter of around 240 nm and the wall thickness of about 25 nm exhibited a single orthorhombic perovskite structure and highly preferential crystal growth along the [1 1 7] orientation, which have smooth wall morphologies and well-defined diameters corresponding to the diameter of the applied template. The formation mechanism of BLT nanotubes was discussed.
Keywords:
- Scanning electron microscope
- Crystal growth
- Nuclear magnetic resonance
- Perovskite (structure)
- Field electron emission
- Crystallography
- High-resolution transmission electron microscopy
- Nanotechnology
- Sol-gel
- Materials science
- Orthorhombic crystal system
- Transmission electron microscopy
- Ferroelectricity
- Chemical engineering
- Diffraction
- Correction
- Source
- Cite
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