Resistivity and field electron emission of nanowires formed by electron beam induced chemical vapor deposition | |
Che, RC ; Liang, CY ; Zhou, XG ; Shi, HL ; Feng, J ; Li, JQ | |
刊名 | CHINESE JOURNAL OF CHEMICAL PHYSICS
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2007 | |
卷号 | 20期号:6页码:680 |
ISSN号 | 1674-0068 |
中文摘要 | Self-standing iron nanowires were fabricated at the apex of a tungsten needle tip by electron beam induced deposition. This sharp needle tip which adhered to the nanowire can be moved with a stepping motor and piezo-driving device, and was attached inside a specially designed transmission electron microscope specimen holder. A copper conductor substrate, with which the approaching nanowires will build up a closed electric circuit, was set on the holder. The tungsten needle tip accompanied with the EBICVD nanowires made contact with the substrate and then a voltage was applied between the two electrodes. Resistivity values of the examined nanowires, by a devised Lock-in-Amplifier circuit, range from 0.1 Omega m to 10(-3) Omega m. Our investigation might have implications in the fabrication and characterization of nano-electronics device. Precursor with phenanthrene (C4H10) was used and the deposition experiment was done using a scanning electron microscope at room temperature. It was found that the surface structure at the top of the nanorod, such as a small protrusion within only several nanometers scale, has significant influence on the field emission property. An emission current of several tens of nano-ampere flowing through this nanorod could induce resistance heating. In several minutes, this thermal energy could transform the original amorphous carbon into a graphite-like structure embedded with fullerenes. The turn-on voltage of the graphite-like nanorod was about 11 V less than that of the original amorphous case. |
收录类别 | SCI |
公开日期 | 2013-09-24 |
内容类型 | 期刊论文 |
源URL | [http://ir.iphy.ac.cn/handle/311004/52111] ![]() |
专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
推荐引用方式 GB/T 7714 | Che, RC,Liang, CY,Zhou, XG,et al. Resistivity and field electron emission of nanowires formed by electron beam induced chemical vapor deposition[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2007,20(6):680. |
APA | Che, RC,Liang, CY,Zhou, XG,Shi, HL,Feng, J,&Li, JQ.(2007).Resistivity and field electron emission of nanowires formed by electron beam induced chemical vapor deposition.CHINESE JOURNAL OF CHEMICAL PHYSICS,20(6),680. |
MLA | Che, RC,et al."Resistivity and field electron emission of nanowires formed by electron beam induced chemical vapor deposition".CHINESE JOURNAL OF CHEMICAL PHYSICS 20.6(2007):680. |
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