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 | Nanotech 2006 Vol. 1
Technical Proceedings of the 2006 NSTI Nanotechnology Conference and Trade Show, Volume 1
Chapter 2: Carbon Nanotubes |
| | Millimeter long vertically aligned single-walled carbon nanotubes by an ultra long lifetime of catalysts | | Authors: | T. Iwasaki, G. Zhong, T. Yoshida, T. Aikawa, R. Morikane and H. Kawarada | | Affilation: | Waseda University, JP | | Pages: | 94 - 97 | | Keywords: | vertically aligned SWNT, millimeter long, root growth mode | | Abstract: | Controlling the growth direction of SWNTs on a substrate is one of the most important issues for fabrication of SWNT-based applications, such as field effect transistors (FETs) and interconnects for LSI. We have succeeded in synthesizing vertically aligned SWNTs with lengths on the order of millimeters for a long time deposition by a point-arc microwave plasma CVD. The height of SWNTs is 1.5mm in 10 hours. The Fe catalytic particles were kept active after the growth of SWNTs for more than 20 hours. A surface density of 1E16/m2 was obtained and this value corresponds to 1/10 of the closed-packed density. High density is very attractive for multi-layer interconnects for LSI and a super capacitor. We also clarified the growth mode of vertically aligned SWNTs using a new method called Marker Growth. Two layers of SWNTs were synthesized intermittently for different growth times. Considering the thickness and the growth time, we could identify the two layers using a line between the layers as a marker. As a result, the root growth mode of vertically aligned SWNTs was successfully clarified. | | ISBN: | 0-9767985-6-5 |
| Pages: | 871 |
| Hardcopy: | $185.00 |
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