Lanthanum-substituted bismuth titanate nanotubes
- Authors
- Shaislamov, Ulugbek; Yang, Jun-Mo; Yang, Beelyong
- Issue Date
- Apr-2012
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, v.44, no.7-8, pp 1649 - 1652
- Pages
- 4
- Journal Title
- PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
- Volume
- 44
- Number
- 7-8
- Start Page
- 1649
- End Page
- 1652
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/22364
- DOI
- 10.1016/j.physe.2012.04.013
- ISSN
- 1386-9477
1873-1759
- Abstract
- Ferroelectric (Bi1-xLax)(4)Ti3O12 (BLT) nanotubes doped with 0.85 at% La were fabricated with the aim of developing an alternative to conventional technologies. A technique based on the wetting of a polymeric metal-organic source was used in the fabrication process for ferroelectric nanotubes. This technique involved the use of porous alumina produced by anodic aluminum oxidation as a template. It was demonstrated that these nanotubes can be used for the large-scale fabrication. X-ray diffraction measurements and transmission electron microscopy studies show that the crystal grains in the BLT nanotubes with a wall thickness of approximately 20 nm have a ferroelectric BLT phase with a random orientation and a grain diameter of 10 nm to 60 nm. Promising electrical properties of the BLT nanotubes for electronic devices could be confirmed in I-V measurements. The measured leakage current for a BLT nanotube with a length of approximately 2.5 mu m at an applied voltage of 2 V was approximately 2.5 x 10(-11) A. (C) 2012 Elsevier B.V. All rights reserved.
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