Synthesis and characterization of BiFeO3 nanotube arrays and Y-junction BiFeO3 nanotubes

Multiferroic BiFeO3 (BFO) nanotube arrays (similar to 100 nm in diameter and similar to 50 A mu m in length) were synthesized by the sol-gel method utilizing the anodic aluminum oxide (AAO) membrane technique. The microstructure and chemical components of the BFO nanotubes were investigated using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectrometer (XPS). The BFO nanotubes exhibited polycrystalline microstructures. The novel Y-junction BFO nanotubes were simultaneously fabricated.