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NCUEIR > College of Science > Department of Physics > Periodical Articles > Item 987654321/18534

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/18534

Title:	Thickness Effect of Nanosized Thin-film Iron Dot on Growth of Multiwall Carbon Nanotubes
Authors:	Ma, Y. R.;Wong, M. S.;See, C. H.;Cheng, K. W.;Wu, Jong-Ching;Liou, Y.;Yao, Y. D.
Contributors:	物理學系
Date:	2005
Issue Date:	2014-06-06T07:18:30Z
Publisher:	American Institute of Physics
Abstract:	Hot-filament chemical vapor deposition, using a mixture of methane and hydrogen, is used to grow micrometer-long multiwall carbon nanotubes (MWNTs) on 1-μm-diametric iron dots with thicknesses of 54, 40, and 20 nm. Bunches of MWNTs grow on the nanosized thin-film iron dots, and thicker iron dots have more MWNTs, because the nanosized thin-film iron dot behaves as a thin film with many catalyst nanoparticles rather than as a catalyst surface. Therefore, the thickness of the nanosized thin-film iron dot strongly dominates the MWNT growth. However, the MWNTs growing on the iron dots are 1 μm long and ∼ 90 nm wide, indicating that the length and diameter of the MWNT are independent of the size and thickness of the iron dot. In addition, the effect of the applied electrical field on the growth of MWNTs is presented.
Relation:	Journal of Applied Physics, 97(10): 10J707
Appears in Collections:	[Department of Physics] Periodical Articles

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