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首页> 外文期刊>Crystal growth & design >Growth and characterization of vertically aligned nonpolar [11?00] orientation ZnO nanostructures on (100) γ-LiAlO_2 substrate
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Growth and characterization of vertically aligned nonpolar [11?00] orientation ZnO nanostructures on (100) γ-LiAlO_2 substrate

机译:在(100)γ-LiAlO_2衬底上垂直排列的非极性[11→00]取向ZnO纳米结构的生长和表征

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摘要

In this work, we demonstrate the capability of controlling the crystallographic orientation of ZnO nanostructure arrays grown along nonpolar [11?00] orientation. The Au catalyst was used to initiate and guide the growth of ZnO nanostructures on (100) γ-LiAlO_2 substrate. The morphology, structure, and optical properties of the as-synthesized ZnO nanostructures were characterized by field emission scanning electron microscopy, X-ray diffraction, field emission transmission electron microscope, monochromatic cathodoluminescence image, and photoluminescence spectroscopy. The ZnO nanostructure arrays exhibited special shape and were aligned vertically on the (100) γ-LiAlO_2 substrate. A cooperative of Au-catalyzed VLS vertebral column growth along [11?00] orientation, zinc-self-catalyzed VLS growth along [0001], and ZnO VS lateral expansion growth process was proposed for the special ZnO nanostructures.
机译:在这项工作中,我们证明了控制沿非极性[11→00]方向生长的ZnO纳米结构阵列的晶体学取向的能力。金催化剂被用来引发和引导ZnO纳米结构在(100)γ-LiAlO_2衬底上的生长。通过场发射扫描电子显微镜,X射线衍射,场发射透射电子显微镜,单色阴极发光图像和光致发光光谱来表征所合成的ZnO纳米结构的形态,结构和光学性质。 ZnO纳米结构阵列表现出特殊的形状,并在(100)γ-LiAlO_2衬底上垂直排列。针对特殊的ZnO纳米结构,提出了Au催化的VLS椎柱沿[11→00]方向生长,锌自催化的VLS沿[0001]生长以及ZnO VS横向膨胀生长过程的协同作用。

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