標題: Tube number density control of carbon nanotubes on anodic aluminum oxide template
作者: Chen, PL
Chang, JK
Pan, FM
Kuo, CT
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: carbon nanotubes;amorphous carbon;density control;plasma CVD
公開日期: 1-三月-2005
摘要: We demonstrate that the tube number density of well-aligned carbon nanotubes (CNTs) grown over the nanoporous anodic aluminum oxide (AAO) template can be directly controlled by adjusting the CH4/H-2 feed ratio during the CNT growth in a microwave plasma electron cyclotron resonance chemical vapor deposition (ECR-CVD) system. During the CNT growth, the nanotube growth and the amorphous carbon deposition on the AAO pore wall take place simultaneously. The amorphous carbon sediment will gradually cover up the AAO nanopores and prevent the nanotubes to grow out of the nanopores. By adjusting the CH4/H(2)feed ratio, one can control the amount of the deposited amorphous carbon and thus the number of CNTs grown over the AAO nanopores. It was found that the CNT density decreases linearly with increasing the CH4 concentration. The CNT density decreased by a factor of about 4.5 when the CH4 concentration increased from 9% to 91%. (c) 2004 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.diamond.2004.11.013
http://hdl.handle.net/11536/13976
ISSN: 0925-9635
DOI: 10.1016/j.diamond.2004.11.013
期刊: DIAMOND AND RELATED MATERIALS
Volume: 14
Issue: 3-7
起始頁: 804
結束頁: 809
顯示於類別:會議論文


文件中的檔案:

  1. 000229751400109.pdf