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首页> 外文期刊>Journal of Materials Research >Morphology and electronic properties of carbon nanotubes grown with Fe catalyst
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Morphology and electronic properties of carbon nanotubes grown with Fe catalyst

机译：铁催化剂生长的碳纳米管的形貌和电子性能

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We describe the synthesis and characterization of aligned carbon nanotubes deposited on quartz substrates by pyrolysis of a xylene-ferrocene mixture at 700 degreesC at atmospheric pressure. For microscopic characterization of the pyrolyzed products, scanning and transmission electron microscopies and scanning tunneling microcopy were used, and properties of bulk samples were characterized by Raman spectroscopy and x-ray powder diffraction methods. The nanotubes have topological defects and many contain metal particles. Scanning tunneling spectroscopy proved that the nanotubes had a metallic electrical conductivity with resonant states near the Fermi energy. The states are ascribed to the dangling bonds originating from the defects. [References: 43]
机译：我们描述了通过在大气压力下于700摄氏度下热解二甲苯-二茂铁混合物而沉积在石英基板上的取向碳纳米管的合成和表征。为了对热解产物进行微观表征，使用了扫描电子显微镜和透射电子显微镜以及扫描隧道显微镜，并通过拉曼光谱和X射线粉末衍射法对大批样品的性能进行了表征。纳米管具有拓扑缺陷，并且许多包含金属颗粒。扫描隧道光谱法证明，纳米管具有金属电导率，其共振态接近费米能。状态归因于源自缺陷的悬空键。 [参考：43]

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