Polymer-assisted hydrothermal synthesis of single crystal Pb1 − xLaxTiO3 nanorods
Polymer-assisted hydrothermal synthesis of single crystal Pb1 − xLaxTiO3 nanorods
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DOI：
10.1016/j.matlet.2009.01.043
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发表时间：
2009-04
影响因子：
3
通讯作者：
Yu Deng;Jianxin Zhou;Yulei Du;K. Zhu;Yuhai Hu;Di Wu;M. Zhang;Youwei Du
中科院分区：
文献类型：
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作者：
Yu Deng;Jianxin Zhou;Yulei Du;K. Zhu;Yuhai Hu;Di Wu;M. Zhang;Youwei Du
采用聚合物辅助水热法合成了不同La浓度的PbxLa 1 − xTiO 3（PLT）单晶纳米棒。纳米棒的直径为25-60 nm，平均长度为3 μm。PLT纳米棒具有四方晶格结构，沿着（001）方向生长。随着La浓度的增加，四方性c/a减小，拉曼模E（1 TO）变软。通过使用不同的聚合物添加剂制备了不同长度和直径的PLT纳米棒。为了制备结晶良好的纳米棒，水热处理后的退火过程被证明是必要的。
Single-crystal PbxLa1−xTiO3(PLT) nanorods of various La concentrations have been synthesized by polymer-assisted hydrothermal method. The nanorods have diameters of 25–60 nm and average lengths of 3 μm. With tetragonal lattices structures, the PLT nanorods grow along the (001) direction. As La concentration increasing, the tetragonality c/a decreases and the Raman mode E(1TO) becomes softening. PLT nanorods with various lengths and diameters have been prepared by using different polymer additives. To fabricate well-crystallized nanorods, an annealing process after the hydrothermal treatment is proved to be necessary.