Fabrication of carbon nanowire networks by Si ion beam irradiation
Fabrication of carbon nanowire networks by Si ion beam irradiation
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DOI：
10.1063/1.2245372
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发表时间：
2006-07
影响因子：
4
通讯作者：
Z. Ni;Qintao Li;De-zhang Zhu;J. Gong
中科院分区：
文献类型：
--
作者：
Z. Ni;Qintao Li;De-zhang Zhu;J. Gong
采用不同剂量的40 keV硅离子束辐照多壁碳纳米管，通过扫描电镜、透射电镜和拉曼光谱对辐照诱导的碳纳米管结构转变进行了表征。非晶碳纳米线和碳纳米线网络的形成得到了明确的证实。研究了构造演化过程及其机理。结果表明，碳纳米线网络的形成经历了三个阶段：纳米管的局部非晶化、简单结的形成和网络的形成。在纳米器件的大规模制造中，离子辐照是实现纳米器件互连的有效手段。
Multiwalled carbon nanotubes were irradiated by 40 keV Si ion beams with different doses, and the irradiation-induced structural transformation was characterized by scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy. The formation of amorphous carbon nanowire and carbon nanowire networks is clearly confirmed. The processes of structural evolution and corresponding mechanism are studied. The results exhibit that the formation of carbon nanowire networks proceeds through three periods: local amorphization of nanotubes, formation of simple junctions, and the formation of networks. Ion irradiation could be a useful tool to interconnect the nanodevices in large-scale fabrication of nanodevices.