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Nanoengineering of Cluster Crystallization of ZnO

机译:ZnO团簇结晶的纳米工程

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摘要

Nanoengineering of cluster crystallization of ZnO at different growth interfaces was studied by expanding the unit cell dimensions in 3D space. At the crystal growth interface, the chemical bonding between ZnO nanoclusters and the lattice dominates the growth behaviors of ZnO single crystals. On the basis of chemical bonding theory of single crystal growth, ZnO morphologies were quantitatively calculated by the chemical bonding conditions of nanoclusters at different growth interfaces. When the unit cell dimensions of ZnO nanoclusters expand along the a(b) axis, the decreased chemical bonding energy density at (100) interface leads to the preferential growth of ZnO along the c-axis and the morphology evolution from nanorod to nanowire. When the unit cell dimensions of ZnO nanoclusters expand along the c axis, the decreased chemical bonding energy densities at (001) and (00-1) interfaces lead to the preferential growth of ZnO along the a(b)-axis and the morphology evolution from nanorod to nanoplatelete.
机译:通过扩展3D空间中的晶胞尺寸,研究了不同生长界面处ZnO团簇结晶的纳米工程。在晶体生长界面,ZnO纳米团簇与晶格之间的化学键控制着ZnO单晶的生长行为。基于单晶生长的化学键合理论,通过纳米团簇在不同生长界面的化学键合条件对ZnO的形貌进行了定量计算。当ZnO纳米簇的晶胞尺寸沿a(b)轴扩展时,(100)界面处化学键能密度的降低导致ZnO沿c轴优先增长,并且形态从纳米棒演化为纳米线。当ZnO纳米团簇的晶胞尺寸沿c轴扩展时,(001)和(00-1)界面处化学键能密度的降低导致ZnO沿a(b)轴优先生长和形态演化从纳米棒到纳米血小板。

著录项

  • 来源
    《Science of advanced materials》 |2013年第7期|909-913|共5页
  • 作者

    Congting Sun; Dongfeng Xue;

  • 作者单位

    School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China,State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022, China;

    School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China,State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ZnO; Nanoclusters; Growth Interface; Chemical Bonding Theory of Single Crystal Growth;

    机译:氧化锌;纳米团簇;增长接口;单晶生长的化学键理论;

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