High density carbon nanotube growth using a plasma pretreated catalyst

被引：22
|
作者：
Zhang, C. [1 ]
Xie, R. [1 ]
Chen, B. [1 ]
Yang, J. [1 ]
Zhong, G. [1 ]
Robertson, J. [1 ]
机构：
[1] Univ Cambridge, Dept Engn, Cambridge CB3 0FA, England
来源：
CARBON | 2013年 / 53卷
关键词：
ELECTRICAL-PROPERTIES; INTERCONNECT; FILMS; FABRICATION; MECHANISM; DEVICES; ARRAYS; SIZE;
D O I：
10.1016/j.carbon.2012.11.020
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We have developed a direct current plasma pretreatment of the Fe catalyst to increase the area density of vertically-aligned carbon nanotube forests. The carbon wall density of the double- and multi-walled nanotubes reaches 4.8 x 10(12) cm(-2), with a 40% volume occupancy and a mass density. of similar to 0.4 g cm(-3). The plasma pretreatment works by reducing the sintering of the catalyst nanoparticles during growth. This treatment increases the forest density by 8 times compared to the standard growth conditions. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：339 / 345
页数：7
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