Navigation Links
New silicon-germanium nanowires could lead to smaller, more powerful electronic devices
Date:12/9/2009

Microchip manufacturers have long faced challenges miniaturizing transistors, the key active components in nearly every modern electronic device, which are used to amplify or switch electronic signals.

Now, researchers from the UCLA Henry Samueli School of Engineering and Applied Science, Purdue University and IBM have successfully grown silicon-germanium semiconducting nanowires for potential use in next-generation transistors.

These nanowires which measure from a few tens to a few hundreds of nanometers in diameter and up to several millimeters in length could help speed the development of smaller, faster and more powerful electronics, according to study co-author Suneel Kodambaka, a UCLA professor of materials science and engineering.

The team's research appears in the Nov. 27 issue of the journal Science.

"We are excited for two reasons," said Frances Ross, manager of IBM's Nanoscale Materials Analysis department and corresponding author of the study. "One is that we have extended our knowledge of the fundamental physics of the process by which nanowires grow. The other is the improved prospect of using nanowires in high-performance electronic devices."

"The nanowires are so small you can place them in virtually anything," Kodambaka said. "Because of their small size, they are capable of having distinctly different properties, compared to their bulk counterparts."

The team showed they could create nanowires with layers of different materials, specifically silicon and germanium, that were defect-free and atomically sharp at the junction critical requirements for making efficient transistors out of the tiny structures. The "sharper" the interface between the material layers in this case, just one atom, or close to one atom, thick the better the electronic properties.

"We think this study is significant because it provides a solution to the problem of growing shar
'/>"/>

Contact: Wileen Wong Kromhout
wwkromhout@support.ucla.edu
310-206-0540
University of California - Los Angeles
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Carbon nanotubes to be replaced by MoSIx nanowires in high-tech devices says new study
2. High Q NIST nanowires may be practical oscillators
3. Chemists measure copper levels in zinc oxide nanowires
4. Carbon nanotubes outperform copper nanowires as interconnects
5. Engineers make first active matrix display using nanowires
6. Spiraling nanotrees offer new twist on growth of nanowires
7. Nanowires may boost solar cell efficiency, UC San Diego engineers say
8. Strong elasticity size effects in ZnO nanowires
9. Researchers peer into nanowires to measure dopant properties
10. Self-assembled nanowires could make chips smaller and faster
11. Evidence of macroscopic quantum tunneling detected in nanowires
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/10/2014)... -- According to the International Atomic Energy Agency ... from terrorists acquiring sufficient quantities of plutonium or ... nuclear explosive device. The IAEA also notes that ... gram-level quantities, which can be challenging to detect ... new study appearing this week in the ...
(Date:7/10/2014)... 2014 Using microscopic polymer light resonators that ... at MIT,s Quantum Photonics Laboratory have developed new ... parts-per-billion range. Optical sensors are ideal for detecting ... ratio, compact, lightweight nature, and immunity to electromagnetic ... been developed before, the MIT team conceived an ...
(Date:7/10/2014)... of psychiatric disorders has been extremely challenging because there ... are insufficient to cause disease. Now investigators reporting in ... Cell Stem Cell describe a strategy that ... with other risk factors or environmental exposures to affect ... a genetic variant that may predispose individuals to schizophrenia. ...
(Date:7/10/2014)... batteries that power our laptops and electric vehicles could ... charge with the help of a sponge-like silicon material. ... the graphite traditionally used in one of the battery,s ... energy storage capacity of graphite. A paper describing the ... today in Nature Communications . , "Silicon has ...
Breaking Biology Technology:Sensitive detection method may help impede illicit nuclear trafficking 2Swell new sensors 2New strategy could uncover genes at the root of psychiatric illnesses 2Silicon sponge improves lithium-ion battery performance 2Silicon sponge improves lithium-ion battery performance 3
... adison, Wis. - Third Wave Technologies, Inc. ... a share, for the second quarter of 2006, but robust ... upward in a key market. , ,Third Wave, which develops ... that revenue rose by 15 percent for the quarter ended ...
... Madison, Wis. - A United States Air Force contract ... not only provide a Madison aerospace research and product development ... it to propel something much larger. , ,The U.S. ... Orbital Technologies Corp. (Orbitec) for the development of ...
... - Thanks to a classified contract from the ... company headquartered here, reported record revenues and earnings for ... the closing of its manufacturing facility in England. , ... of lower-than-expected earnings in the fourth quarter, which caused ...
Cached Biology Technology:Third Wave reports another loss, stronger sales 2Third Wave reports another loss, stronger sales 3Orbitec will use $25 million Air Force contract to make small launch vehicle 2Defense contract helps Plexus gain record profits 2
(Date:7/11/2014)... the Department of Energy,s Oak Ridge National Laboratory ... R&D Magazine in recognition of the year,s top ... tremendous value of our National Labs," said Secretary ... the National Labs continues to help our nation ... and technological innovations necessary to remain globally competitive." ...
(Date:7/11/2014)... The University of Chicago is creating a new ... at the University,s Institute for Molecular Engineering and ... million donation from the Millicent and Eugene Bell ... will reside within the Institute for Molecular Engineering. ... research project at the MBL,s Eugene Bell Center ...
(Date:7/11/2014)... The Chinese University of Hong Kong, BGI and other ... to salt tolerance, with implication for improving this important ... online in Nature Communications provides an effective ... , Soybean is an important crop for the world. ... less genetic diversities than their wild counterparts. Among the ...
Breaking Biology News(10 mins):ORNL wins eight R&D 100s 2ORNL wins eight R&D 100s 3ORNL wins eight R&D 100s 4New professorship in tissue engineering links molecular engineering, marine biology 2BGI reports a novel gene for salt tolerance found in wild soybean 2
... the University of Leeds are developing methods of helping ... chemicals such as vinegar. , The harmful chromium ... from former textiles factories, smelters, and tanneries have been ... problems with the kidneys, liver, lungs and skin. , ...
... but researchers in China have discovered that chicken manure can ... in the International Journal of Environment and Pollution ... 50% more crude oil than soil lacking the guano. ... University, China, point out that contamination of soil by crude ...
... comes to solving complex problems, Geoffrey von Maltzahn, MIT ... solutions. Finding inspiration in systems that evolution has produced, ... society,s biggest challenges: improving tumor detection and therapeutic delivery ... patients. Today, the 28-year-old Ph.D. candidate in ...
Cached Biology News:Cleansing toxic waste -- with vinegar 2Fowl soil additive breaks down crude oil 2MIT student develops new innovations to selectively kill cancer cells 2MIT student develops new innovations to selectively kill cancer cells 3MIT student develops new innovations to selectively kill cancer cells 4
Mouse monoclonal [3G131] to Desmoglein 1 ( Abpromise for all tested applications). entrezGeneID: 1828 SwissProtID: Q02413...
Mouse monoclonal [2D7/1] to E.coli LPS ( Abpromise for all tested applications). Antigen: Tissue / cell preparation: Escherichia coli J5 cells....
COMING SOON: Anti-Mouse C5/C5b, Clone BB5.1. Monoclonal Antibody...
KAI 1 (G-2)...
Biology Products: