Resistivity and field electron emission of nanowires formed by electron beam induced chemical vapor deposition

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	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
	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.