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Synthesis of zinc oxide nanorods and their sensing properties

机译：氧化锌纳米棒的合成及其传感性能

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Zinc oxide (ZnO) nanorods have been synthesized via the arc discharge method. Different cathode materials, graphite and copper, were applied to modulate the morphology and UV & humidity sensing properties of the as-synthesized ZnO nanorods. Compared with ZnO nanorods synthesized by graphite cathode, shorter length and other spherical and cubical structures were also detected for those ZnO nanorods synthesized by copper cathode. A better UV-sensitive photoconduction and higher humidity sensitivity were detected for ZnO nanorods synthesized by graphite cathode than those obtained by copper cathode, which is considered to be due to the higher aspect ratio for long ZnO nanorods. The simplicity of the synthesis route coupled with the modulation of morphology and sensing properties of ZnO nanorods make the arc discharge method a very promising way to produce high quality ZnO nanorods with adjustable morphologies.
机译：氧化锌（ZnO）纳米棒已通过电弧放电法合成。应用了不同的阴极材料（石墨和铜）来调节合成后的ZnO纳米棒的形貌以及对紫外线和湿度的感应特性。与石墨阴极合成的ZnO纳米棒相比，铜阴极合成的ZnO纳米棒的长度较短，并且具有其他球形和立方结构。石墨阴极合成的ZnO纳米棒比铜阴极合成的ZnO纳米棒具有更好的紫外光敏光电导性和湿度敏感性，这被认为是由于长ZnO纳米棒具有更高的长宽比。合成路线的简单性加上ZnO纳米棒的形貌和感测特性的调制，使得电弧放电方法成为生产形态可调的高质量ZnO纳米棒的非常有前途的方法。

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