简介概要

Synthesis of Aligned Carbon Nanotubes by Thermal Chemical Vapor Deposition

来源期刊:Journal Of Wuhan University Of Technology Materials Science Edition2009年第1期

论文作者:李刚 周明

文章页码:15 - 19

摘    要:Single crystal silicon was found to be very beneficial to the growth of aligned carbon nanotubes by chemical vapor deposition with C2H2 as carbon source. A thin film of Ni served as catalyst was deposited on the Si substrate by the K575X Peltier Cooled High Resolution Sputter Coater before growth. The growth properties of carbon nanotubes were studied as a function of the Ni catalyst layer thickness. The diameter, growth rate and areal density of the carbon nanotubes were controlled by the initial thickness of the catalyst layer. Steric hindrance between nanotubes forces them to grow in well-aligned manner at an initial stage of growth. Transmission electron microscope analysis revealed that nanotubes grew by a tip growth mechanism.

详情信息展示

Synthesis of Aligned Carbon Nanotubes by Thermal Chemical Vapor Deposition

李刚1,2,周明1

1. Jiangsu Key Laboratory of Center for Photon Manufacturing Science and Technology,Jiangsu University2. School of Automobile and Traffic Engineering,Jiangsu University

摘 要:Single crystal silicon was found to be very beneficial to the growth of aligned carbon nanotubes by chemical vapor deposition with C2H2 as carbon source. A thin film of Ni served as catalyst was deposited on the Si substrate by the K575X Peltier Cooled High Resolution Sputter Coater before growth. The growth properties of carbon nanotubes were studied as a function of the Ni catalyst layer thickness. The diameter, growth rate and areal density of the carbon nanotubes were controlled by the initial thickness of the catalyst layer. Steric hindrance between nanotubes forces them to grow in well-aligned manner at an initial stage of growth. Transmission electron microscope analysis revealed that nanotubes grew by a tip growth mechanism.

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