Synthesis of High-Density Vertically Aligned Carbon Nanotubes Using Ultrasonic Nebulizer
Synthesis of High-Density Vertically Aligned Carbon Nanotubes Using Ultrasonic Nebulizer作者机构：Department of Fron- tier Materials Nagoya Institute of Technology Nagoya Japan. EcoTopia Science Institute Nagoya University Nagoya Japan
出 版 物：《Materials Sciences and Applications》 (材料科学与应用期刊（英文）)
年 卷 期：2012年第3卷第4期
页 面：213-217页
主 题：Carbon Nanotubes Chemical Vapor Deposition Transmission Electron Microscope
摘 要：Vertically aligned carbon nanotubes (VACNTs) array with high density have been synthesized from a mixture of ferrocene and ethanol using ultrasonic nebulizer techniques. Using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) as well as Raman spectroscopy, investigations reveal that the vertically aligned CNTs are multi-wall CNTs with well-ordered graphene sheets and are about 20 - 50 nm in diameter. We found that high density vertically aligned CNTs can be synthesized at 750℃ - 850℃ and that the length and density of vertically aligned CNTs increase with increasing growth temperatures. In addition, the single-walls CNTs have well-ordered graphene sheet and are about 2 nm in diameter on silicon substrates at 650℃.
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