The fabrication of La-substituted bismuth titanate nanofibers by electrospinning

被引：27

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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