H. Zhang

Dalian University of Technology, Lü-ta-shih, Liaoning, China

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Publications (2)1.71 Total impact

  • B. Huo · L. Hu · H. Zhang · Q. Fu · J. Zhu · X. Chen
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    ABSTRACT: A porous MgO film was grown on sapphire by pulsed-laser deposition. First, small islands of ZnO are grown, and then MgO at a high temperature and high vacuum is deposited. The shortest distance between the two pores is about 5 um. The ZnO grains are grown at the bottom of the pore. The ZnO grains at the rim of the bottom are thinner than that of the centre at the bottom, at which the grains look like thin nano-rods. It is evident that MgO would not be deposited on ZnO small islands at a high vacuum and high temperature when the substrate is sapphire. This morphology can be used for fabricating the materials in which the shortest distance between the two nanoparticles is about 5 mum. It seems that other porous materials can also be realised by this method.
    No preview · Article · Apr 2009 · Micro & Nano Letters
  • B. Huo · L. Hu · H. Zhang · Z. Zhao · Q. Fu · J. Ma
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    ABSTRACT: Superlattices of ZnO/Zn0.85Mg0.15O were grown on a sapphire (0001) substrate by the pulsed laser deposition method. Before the growth, ZnO buffer layers were grown at 650 C and an oxygen pressure of 60 Pa for 30 min. The results of the scanning electron microscope exhibit that the films with a buffer layer consist of well c-axis oriented nano-needles with a size range from 50 to 150 nm. Compared with the film without a buffer layer, the film with a buffer layer has a stronger peak energy when the well widths are almost the same. It is evident that the buffer layer could increase the quality of the superlattice and this nanostructure would be useful to research the microcavity.
    No preview · Article · Jan 2008 · Micro & Nano Letters

Publication Stats

2 Citations
1.71 Total Impact Points

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  • 2008
    • Dalian University of Technology
      • Department of Physics
      Lü-ta-shih, Liaoning, China