کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1794414 | 1023697 | 2009 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and characterization of Bi3.15Nd0.85Ti3O12 nanotube arrays Synthesis and characterization of Bi3.15Nd0.85Ti3O12 nanotube arrays](/preview/png/1794414.png)
Nd-substituted bismuth titanate (Bi3.15Nd0.85Ti3O12, BNT) nanotube arrays are fabricated by means of a sol–gel method utilizing porous anodic aluminum oxide (AAO) template. The morphologies and structures have been determined by scanning electron microscopy (SEM), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The diameter and length of these nanotubes are about 200 nm and 60 μm, respectively, and their wall thickness is about 30 nm. The average grain size is around 40 nm. XRD data show that the BNT nanotubes possess bismuth-layered perovskite structure. High-resolution electron microscopy (HRTEM) image demonstrates that the BNT nanotubes are polycrystalline. Polarization–electric field (P–E) response curves of BNT nanotube arrays were measured, and a size induced polarization reduction phenomenon is observed.
Journal: Journal of Crystal Growth - Volume 311, Issue 20, 1 October 2009, Pages 4495–4498