Ferroelectric lead zirconate titanate and barium titanate nanotubes
Ferroelectric lead zirconate titanate and barium titanate nanotubes
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DOI：
10.1080/10584580390260009
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发表时间：
2003-01-01
影响因子：
0.7
通讯作者：
Alexe, M
中科院分区：
文献类型：
--
作者：
Luo, Y;Szafraniak, I;Alexe, M
润湿多孔模板孔壁是制备纳米管的一种简便方法。以多孔硅为模板，通过润湿聚合物前驱体制备了锆钛酸铅和钛酸钡铁电纳米管。的铁电和压电性能的一个单独的铁电体的PZT或钛酸钡纳米管的电特性，其特征在于通过测量本地的压电迟滞。磁滞回线在矫顽电压约为2 V时显示出急剧的开关。相应的有效剩余压电系数约为90 pm/V。我们还期望通过部分蚀刻硅模板获得的独立铁电纳米管将被用作小型化器件的构建块，并且可以在纳米机电系统领域产生重大影响。
Wetting of the pore walls of porous templates is a simple and convenient method to prepare nanotubes. Ferroelectric lead zirconate titanate and barium titanate nanotubes were fabricated by wetting of porous silicon templates of polymeric precursors. The ferro- and piezoelectric properties of an individual ferroelectric either of a PZT or a BaTiO3 nanotube were electrically characterized by measuring the local piezoelectric hysteresis. A sharp switching at the coercive voltage of about 2 V was shown from the hysterisis loop. The corresponding effective remnant piezoelectric coefficient is about 90 pm/V. We also expect that free-standing ferroelectric nanotubes obtained by partial etching of the silicon template will be used as building blocks of miniaturized devices and can have a significant impact in the field of nano-electromechanical systems.