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Surface potential driven dissolution phenomena of [0001]-oriented ZnO nanorods grown from ZnO and Pt seed layers

机译:由ZnO和Pt种子层生长的[0001]取向ZnO纳米棒的表面电势驱动溶解现象

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摘要

Highly oriented ZnO nanorods are synthesized hydrothermally on ZnO and Pt seed layers, and they are dissolved in KOH solution. The rods grown on ZnO seed layer show uniform dissolution, but those grown on Pt seed layer are rod-selectively dissolved. The ZnO nanorods from both seed layers show the same crystalline structure through XRD and Raman spectrometer data. However, the surface potential analysis reveals big difference for ZnO and Pt seed cases. The surface potential distribution is very uniform for the ZnO seed case, but it is much fluctuated on the Pt seed case. It suggests that the rod-selective dissolution phenomena on Pt seed case are likely due to the surface energy difference.
机译:高取向的ZnO纳米棒是在ZnO和Pt种子层上水热合成的,并溶解在KOH溶液中。在ZnO晶种层上生长的棒显示出均匀的溶解,但是在Pt晶种层上生长的棒被选择性地溶解。通过XRD和拉曼光谱仪数据,两个晶种层的ZnO纳米棒均显示相同的晶体结构。然而,表面电势分析表明,ZnO和Pt种子的情况差异很大。对于ZnO种子情况,表面电势分布非常均匀,但在Pt种子情况下,表面电势波动很大。这表明Pt晶种情况下的棒选择性溶出现象可能是由于表面能的差异。

著录项

  • 来源
    《Applied Surface Science》 |2011年第17期|p.7659-7664|共6页
  • 作者

    Youngmi Seo; Jung Hyeun Kim;

  • 作者单位

    Nano System Application Laboratory, Department of Chemical Engineering, University of Seoul, Seoul 130-743, Republic of Korea;

    Nano System Application Laboratory, Department of Chemical Engineering, University of Seoul, Seoul 130-743, Republic of Korea;

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

    zno nanorods; nanotubes; seed layers; surface potential;

    机译:锌纳米棒纳米管种子层表面电位;

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