Crystal growth of ferroelectric PbTiO₃ nanocrystals on silicon substrate via intermediates

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• 作者：Chunying Chao ; Zhaohui Ren ; ^{renzh@zju.edu.cn} ; Zhenya Liu ; Zhen Xiao ; Gang Xu ; Xiao Wei ; Ge Shen ; Gaorong Han
• 关键词：A. Inorganic compounds ; B. Crystal growth ; B. Sol&ndash ; gel chemistry ; C. Atomic force microscopy ; D. Ferroelectricity
• 刊名：Materials Research Bulletin
• 出版年：2012
• 期刊代码：60_00255408
• 类别：ms
• 出版时间：March, 2012
• 卷：47
• 期：3
• 页码：912-916
• 文件大小：947 K

摘要

A unique aggregation-based crystal growth phenomenon of PbTiO₃ nanodots on Si (1 0 0) substrate was observed. Compared to conventional nucleation and diffusion mechanism, a process of aggregation, self-assembly and coarsen process was found to facilitate the growth of PbTiO₃ (PT) nanocrystals on Si (1 0 0) substrates. In addition, intermediates, which were constructed by self-assembly of Pb-Ti oxide nanocrystals, were observed during the crystal growth process on Si (1 0 0) substrates.