Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Case Researchers “Grow” Carbon Nanotubes, Cheaper, Faster

Abstract:
Development could lead to smaller but more powerful computers and electronic communication devices

Case Researchers “Grow” Carbon Nanotubes, the Basic Building Blocks of Nanotechnology, in Lab Using Faster, Cheaper Means

Case Western Reserve University

Cleveland, OH | April 14, 2005

A Case Western Reserve University engineer has created the "seeds" that can grow into today's and tomorrow's computer and phone chips.

In a development that could lead to smaller but more powerful computers and electronic communication devices, Massood Tabib-Azar, a professor of electrical engineering and computer science at Case, and engineering graduate student Yan Xie are growing carbon nanotube bridges in their lab that automatically attach themselves to other components without the help of an applied electrical current.

Carbon nanotubes, discovered just 14 years ago, are stronger than steel and as flexible as plastic, conduct energy better than almost any material ever discovered and can be made from ordinary raw materials such as methane gas. In a relatively short time, carbon nanotubes - thin tubes of carbon atoms that have unusual characteristics because of their unique structure - have emerged as a "miracle material" that could revolutionize a number of industries, especially the small electronics industry.

What makes this discovery significant, Tabib-Azar says, is that, while there are some technical issues yet to be addressed, carbon nanotube bridges may open the door for manufacturers to utilize carbon nanotubes in building the tiniest computer and communication chips. Carbon nanotubes are being explored for many applications in nanoelectronics, nano-electromechanical systems, biosensors, nano-composites, advanced functional materials and meta-materials.

New and cheaper ways to grow carbon nanotubes can improve companies' competitive edge, says Tabib-Azar. The researchers' method is much less expensive and quicker to perform and results in a self-assembled network of carbon nanotube devices.

Tabib-Azar likens making today's computer and cell phone chips to building a table by chopping down a tree and eliminating the unwanted portions until you end up with a flat surface with four legs. He and Xie discovered that you can grow building blocks of ultra large scale integrated circuits by growing self-assembled and self-welded carbon nanotubes much the same way you'd build that table. However, instead of chopping down the whole tree, all you have to do is create the "seeds" to grow what you need. In other words, Tabib-Azar and Xie have found the seeds to grow just the carbon nanotubes that are needed without wasting the entire "tree."

"Our approach is like growing a table using a 'table seed,' said Tabib-Azar. "By growing the electronic circuits rather than chopping down and eliminating unwanted regions of different layers, our approach has the potential of producing very complex chips with superior computational properties and at the same time being less wasteful and more in tune with the way nature 'builds' complex structures."

"Electronics is at the heart of global competition among superpowers," he continued. "And it's important to note that the electronics world market is an $850 billion industry."

Tabib-Azar predicts that within five to 10 years the United States' ability to double the number of switches per chip every 18 months will be diminished if American electronics companies don't remain competitive.

In order to use carbon nanotubes in electronics where they may greatly benefit device performance and enable cramming in more devices per chip, the nanotubes should be connected to electrical contacts. Until now, the researchers say, to connect carbon nanotubes to electrical contacts, very high precision tools such as atomic force microscopes were used that made the resulting devices very expensive. Or, in the past, researchers have used electric forces to grow carbon nanotubes between two contacts. Both these techniques result in a very few devices and can't be used for producing a large number of switches and devices in a cost-effective way.

"There are many research efforts in the U.S. and across the world to invent and discover the transistors and switches that will be more suitable to chips used in cell phones and computers beyond 2010-2015," said Tabib-Azar. "Carbon nanotubes have emerged as one of the candidates to carry the electronics industry forward."

The research is partially supported by the National Science Foundation's NER Program, the Semiconductor Research Corp. and the National Institute of Standards and Technology.

####


About the Case School of Engineering
The Case School of Engineering, which is celebrating its 125th anniversary in 2005, has distinctive and acclaimed research programs, including biomedical engineering, functional polymers, fuel cells, advanced materials, microgravity fluid flow and combustion, biologically inspired robots, sensors and microfabrication. Research awards at the school have more than doubled since 2001 to nearly $60 million.

About Case Western Reserve University
Case is among the nation’s leading research institutions. Founded in 1826 and shaped by the unique merger of the Case Institute of Technology and Western Reserve University, Case is distinguished by its strengths in education, research, service, and experiential learning. Located in Cleveland, Case offers nationally recognized programs in the Arts and Sciences, Dental Medicine, Engineering, Law, Management, Medicine, Nursing, and Social Sciences. .



Contact:
Contact: Laura Massie
(216) 368-4442
laura.massie@case.edu

Copyright © Case Western Reserve University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

Possible Futures

Smaller, faster, cheaper: A new type of modulator for the future of data transmission July 27th, 2015

Researchers predict material with record-setting melting point July 27th, 2015

Global Corrosion Resistant Nano Coatings Market To 2015: Acute Market Reports July 27th, 2015

Global Zinc oxide nanopowders Industry 2015: Acute Market Reports July 25th, 2015

Chip Technology

Superfast fluorescence sets new speed record: Plasmonic device has speed and efficiency to serve optical computers July 27th, 2015

Spintronics: Molecules stabilizing magnetism: Organic molecules fixing the magnetic orientation of a cobalt surface/ building block for a compact and low-cost storage technology/ publication in Nature Materials July 25th, 2015

Penn researchers discover new chiral property of silicon, with photonic applications July 25th, 2015

Global Nano Barium Sulfate Industry 2015 Market Research Report July 23rd, 2015

Nanotubes/Buckyballs/Fullerenes

UT Dallas nanotechnology research leads to super-elastic conducting fibers July 24th, 2015

Nano-C Receives EPA Approvals for Single Walled Carbon Nanotubes July 21st, 2015

Global Carbon Nanotube Industry 2015 Market Research Report July 20th, 2015

Old astronomic riddle on the way to be solved July 16th, 2015

Nanoelectronics

Superfast fluorescence sets new speed record: Plasmonic device has speed and efficiency to serve optical computers July 27th, 2015

Spintronics: Molecules stabilizing magnetism: Organic molecules fixing the magnetic orientation of a cobalt surface/ building block for a compact and low-cost storage technology/ publication in Nature Materials July 25th, 2015

ORNL researchers make scalable arrays of 'building blocks' for ultrathin electronics July 22nd, 2015

An easy, scalable and direct method for synthesizing graphene in silicon microelectronics: Korean researchers grow 4-inch diameter, high-quality, multi-layer graphene on desired silicon substrates, an important step for harnessing graphene in commercial silicon microelectronics July 21st, 2015

Announcements

Researchers predict material with record-setting melting point July 27th, 2015

Reshaping the solar spectrum to turn light to electricity: UC Riverside researchers find a way to use the infrared region of the sun's spectrum to make solar cells more efficient July 27th, 2015

Industrial Nanotech, Inc. Provides Update on PCAOB Audited Financials July 27th, 2015

Global Corrosion Resistant Nano Coatings Market To 2015: Acute Market Reports July 27th, 2015

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project