Electric Current Induced Nanofilm Deposition on Carbon Nanotubes

Author

Liu, Pou ; Nakajima, Masahiro ; Yang, Zhan ; Fukuda, Toshio

Author_Institution

Dept. of Micro-Nano Syst. Eng., Nagoya Univ., Nagoya

fYear

2008

fDate

18-21 Aug. 2008

Firstpage

187

Lastpage

189

Abstract

We report a novel technique for growing of nanofilm induced by electric current. A single carbon nanotube (CNT) as a conductive nanowire was suspended between two electrodes, and was supplied by direct currents. As the current flowed through the CNT, the tungsten nanofilm was deposited on the surface of the CNT using tungsten hexacarbonyl as precursors. The nanofilms were observed with transmission electron microscopy and its composition was analyzed with energy dispersive X-ray spectrometry. From the experimental result, the tungsten composition was 88 %. The growth mechanisms are considered that the tungsten hexacarbonyl are decomposed by the resistance induced thermal.

Keywords

X-ray chemical analysis; dissociation; electron beam deposition; metallic thin films; nanostructured materials; nanotechnology; transmission electron microscopy; tungsten; C; W; conductive nanowire; decomposition; electric current induced nanofilm deposition; electrodes; energy dispersive X-ray spectrometry; single carbon nanotube; thermal resistance; transmission electron microscopy; tungsten hexacarbonyl; Carbon nanotubes; Current; Dispersion; Electrodes; Electron beams; Scanning electron microscopy; Spectroscopy; Thermal resistance; Transmission electron microscopy; Tungsten;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology, 2008. NANO '08. 8th IEEE Conference on

Conference_Location

Arlington, Texas

Print_ISBN

978-1-4244-2103-9

Electronic_ISBN

978-1-4244-2104-6

Type

conf

DOI

10.1109/NANO.2008.61

Filename

4617043