Nanotubes growing method to revolutionise electronics

 
Post new topic   Reply to topic    Institute of Nanotechnology Forum Index -> Nanoelectronics
View previous topic :: View next topic  
Author Message
nanoorg
Site Admin


Joined: 16 Mar 2004
Posts: 1392

PostPosted: Tue Oct 10, 2006 3:33 pm    Post subject: Nanotubes growing method to revolutionise electronics Reply with quote

New method of growing carbon nanotubes to revolutionise electronics


A new method of growing carbon nanotubes is predicted to revolutionise the implementation of nanotechnology and the future of electronics. Researchers at the University of Cambridge have successfully grown nanotubes at a temperature which permits their full integration into present complementary metal-oxide semiconductor (CMOS) technology (350 C).

Carbon nanotubes are the driving force for current advances in nanotechnology; they have excellent mechanical and electronic properties, the latter making them extremely attractive for new-generation electronics.
Increasing efficiency through smaller components is the key towards miniaturisation of technology. Carbon nanotubes may find successful uses ranging from sophisticated, niche applications to everyday electronics (mobile phones, computers).

Thus far the growth of nanotubes has been carried out at very high temperatures, and growth below 500 C was believed impossible. This made the direct implementation of nanotubes into electronic devices unthinkable. Trying to integrate nanotubes above 400450 C would in fact damage the inter-metal dielectrics commonly employed in CMOS device fabrication.

A group of researchers at the Department of Engineering at the University of Cambridge, led by Mirco Cantoro, Stephan Hofmann, Andrea Ferrari and John Robertson, in collaboration with colleagues at the Cambridge Hitachi Laboratory and the Department of Materials Science, University of Cambridge, succeeded in growing single-wall carbon nanotubes at temperatures as low as 350 C.

These nanotubes, grown by thermal Chemical Vapour Deposition (a chemical process often used in the semiconductor industry), are promising candidates for integration into existing nanoelectronic devices.
This result also sheds new light on the possible mechanisms that occur during carbon nanotube growth. Previously, the assumption that the catalyst has to be liquid often dominated carbon nanotube growth model considerations, but at these lower temperatures evidence has been found of a solid catalyst. These findings extend to the catalytic growth of other nanostructures in general.




Source:

http://www.physorg.com/news74357455.html




This story was first posted on 10th August 2006.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Institute of Nanotechnology Forum Index -> Nanoelectronics All times are GMT
Page 1 of 1
 

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2002 phpBB Group