backtop


Print 22 comment(s) - last by svenw.. on Mar 17 at 4:58 PM

Carbon nanotubes look to step in and pick up where copper trails off.

The scientists at the Rensselaer Polytechnic Institute, located in Troy, New York, have been busy playing with carbon nanotubes (CNT) for the past few years. Their research has brought us the possibility of paper batteries, remote-controlled disease killing bombs, and the blackest material in the world.

Saroj Nayak, associate professor at Rensselaer's Department of Physics, Applied Physics and Astronomy, recently led a team on a research project to compare the conductive properties of copper nanowires with that of carbon nanotube bundles. The conclusion probably won't be much of a shock: CNT bundles came out on top.

Rather than comparing the empirical data between the two subjects, Nayak's team used the world's fastest university based supercomputer, Rensselaer's Computational Center for Nanotechnology Innovations, to study their quantum mechanical properties. While empirical measurements are fine for research at a normal scale, the interaction of molecules, atoms, and some of their building blocks are more accurately measured below the macro scale using quantum mechanical observations.

The team's ultimate goal was to learn which material would be better for microchip interconnects. Copper interconnects are quickly coming to a choke point as chip cores continue their downward spiral. The current 45nm technology is not predicted to be the final blow, thanks to things like high-k metal interconnect gates. Some research suggests cores built on 15nm technology are more than feasible.

However, replacing the copper that is currently used for interconnects with a more efficient material would be a boon to chip makers and designers, possibly allowing them to even further shrink the process.

Though CNT bundles look to be a promising new material for microchips, there are still some ramifications to be dealt with before mass production could start. An economical way to grow the bundles, as well as a method to ensure the tubes themselves are 100% metallic will have to be found. A more thorough understanding of the electrical properties of CNTs as interconnects will be needed as well.

Nayak's groups' research will be featured in the March issue of Journal of Physics: Condensed Matter.



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

Boring....
By Integral9 on 3/17/2008 10:24:36 AM , Rating: 3
I read that whole article looking for some results only to be left wondering why this is even on a news site. It the kind of stuff you'd expect to see posted up in the hall of the engineering college under the heading, "Hey, Look what we're doing". If all you got is that RPI is using their supercomputer to run subatamic simulations to analyze the movement of electrons inside of CNTs, you should have left this story on the wall of the engineering department at RPI. It's not that the research isn't important, but it's not news, even if RPI is doing it. I'm sure there are a dozen universities / labs around the world working on the same thing. And from what I've read in the past, it's already been determined that CNTs are better conductors than copper wires.




"This week I got an iPhone. This weekend I got four chargers so I can keep it charged everywhere I go and a land line so I can actually make phone calls." -- Facebook CEO Mark Zuckerberg














botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki