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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Hydrothermally grown ZnO nanorods on self-source substrate and their field emission
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Hydrothermally grown ZnO nanorods on self-source substrate and their field emission

机译：自热衬底上水热生​​长的ZnO纳米棒及其场发射

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摘要

Vertically aligned zinc oxide nanorod arrays were grown directly using a zinc foil as both source and substrate in pure water at low temperature by a simple hydrothermal reaction. The morphology and crystal structure of the ZnO nanorod arrays were examined by scanning electron microscopy, transmission electron microscopy and x-ray diffraction, respectively. The nanorods grew along the [0 0 0 1] direction and were 80 nm in diameter and almost 2 mu m in length. Directly employing the zinc foil substrate as cathode, the field emission (FE) of the ZnO nanorods presented a two-stage slope behaviour in a ln(J/E-2)-1/E plot according to the Fowler-Nordheim equation. The FE behaviour was investigated by considering the action of the defects in ZnO nanorods based on the measurement of the photoluminescence.
机译：垂直对齐的氧化锌纳米棒阵列是通过简单的水热反应，在低温下在纯水中使用锌箔作为源和基底直接生长的。分别通过扫描电子显微镜，透射电子显微镜和x射线衍射检查了ZnO纳米棒阵列的形态和晶体结构。纳米棒沿[0 0 0 1]方向生长，直径为80 nm，长度几乎为2μm。根据Fowler-Nordheim方程，直接将锌箔衬底用作阴极，ZnO纳米棒的场发射（FE）在ln（J / E-2）-1 / E图中呈现出两阶段的倾斜行为。基于光致发光的测量，通过考虑ZnO纳米棒中缺陷的作用来研究FE行为。

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