Self-assembly of carbon nanohelices: Characteristics and field electron emission properties
Self-assembly of carbon nanohelices: Characteristics and field electron emission properties
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DOI：
10.1063/1.1695198
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发表时间：
2004-04
影响因子：
4
通讯作者：
Guangyu Zhang;Xin Jiang;E. Wang
中科院分区：
文献类型：
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作者：
Guangyu Zhang;Xin Jiang;E. Wang
本文报道了利用微波等离子体辅助化学气相沉积在铁针上合成自组装碳纳米螺旋的方法。催化生长可以用气-液-固理论来解释。利用扫描电子显微镜、高分辨率透射电子显微镜、纳米光束衍射和拉曼光谱研究了它们的形态和微观结构。场发射研究表明，该材料具有较低的导通电场和较高的发射电流。
We report the synthesis of self-assembled carbon nanohelices on iron needles using microwave plasma assisted chemical vapor deposition. The catalytic growth can be explained by the vapor–liquid–solid theory. Their morphologies and microstructures are investigated by scanning electron microscopy, high-resolution transmission electron microscopy, nanobeam diffraction, and Raman spectroscopy. The field-emission investigations show a rather low turn-on electrical field and high emission current.