The fabrication of La-substituted bismuth titanate nanofibers by electrospinning

被引：26
|
作者：
Tang, Minghua [1 ]
Shu, Wei [1 ]
Yang, Feng [1 ]
Zhang, Jun [1 ]
Dong, Guangjun [1 ]
Hou, Jianwei [1 ]
机构：
[1] Xiangtan Univ, Minist Educ, Key Lab Low Dimens Mat & Applicat Technol, Xiangtan 411105, Peoples R China
来源：
NANOTECHNOLOGY | 2009年 / 20卷 / 38期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1088/0957-4484/20/38/385602
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Bismuth titanates with La-substituted (Bi3.25La0.75Ti3O12, BLT) nanofibers were synthesized by sol-gel based electrospinning. Pure phase perovskite structure BLT nanofibers could be obtained by annealing at 700 degrees C in air for 1 h. The morphology, crystallized phase and crystal structure were investigated by means of scanning electron microscopy, x-ray diffraction analysis and high resolution transmission electron microscopy, respectively. Nanofibers with fine crystallinity were observed with fiber diameters in the range of 100-300 nm and length over 150 mu m. The ferroelectricity of BLT nanofibers has been confirmed by piezoresponse force microscopy. Excellent piezoelectricity of individual nanofibers has also been obtained.
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页数：4
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