Synthesis and ferroelectric properties of multiferroic BiFeO3 nanotube arrays
Synthesis and ferroelectric properties of multiferroic BiFeO3 nanotube arrays
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DOI：
10.1063/1.2076437
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发表时间：
2005-09
影响因子：
4
通讯作者：
Xinyi Zhang;C. Lai;X. Zhao;Danyang Wang;J. Dai
中科院分区：
文献类型：
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作者：
Xinyi Zhang;C. Lai;X. Zhao;Danyang Wang;J. Dai
报道了有序多铁BiFeO_3(BFO)纳米管阵列的制备和表征。以纳米通道氧化铝为模板，采用溶胶-凝胶法制备了直径约250 nm、长度约6μm的BFO纳米管。700℃热处理后的BFO纳米管具有多晶结构，X射线衍射和透射电子显微镜研究表明其为钙钛矿结构。通过压电响应力显微镜测量，证明了BFO纳米管具有显著的铁电和压电特性。
We report the synthesis and characterization of ordered multiferroic BiFeO3 (BFO) nanotube arrays. BFO nanotubes with diameters of about 250nm and lengths of about 6μm were fabricated by means of a sol-gel method utilizing nanochannel alumina templates. After postannealing at 700°C, the BFO nanotubes exhibited a polycrystalline microstructure, and x-ray diffraction and transmission electron microscopy study revealed that they are of a perovskite crystal structure. Significant ferroelectric and piezoelectric characteristics of BFO nanotubes have been demonstrated by means of piezoresponse force microscopy measurement.