Navigation Links
Graphene used to create world's smallest transistor
Date:4/17/2008

Researchers have used the world's thinnest material to create the world's smallest transistor, one atom thick and ten atoms wide.

Reporting their peer-reviewed findings in the latest issue of the journal Science, Dr Kostya Novoselov and Professor Andre Geim from The School of Physics and Astronomy at The University of Manchester show that graphene can be carved into tiny electronic circuits with individual transistors having a size not much larger than that of a molecule.

The smaller the size of their transistors the better they perform, say the Manchester researchers.

In recent decades, manufacturers have crammed more and more components onto integrated circuits. As a result, the number of transistors and the power of these circuits have roughly doubled every two years. This has become known as Moore's Law.

But the speed of cramming is now noticeably decreasing, and further miniaturisation of electronics is to experience its most fundamental challenge in the next 10 to 20 years, according to the semiconductor industry roadmap.

At the heart of the problem is the poor stability of materials if shaped in elements smaller than 10 nanometres (1) in size. At this spatial scale, all semiconductors -- including silicon -- oxidise, decompose and uncontrollably migrate along surfaces like water droplets on a hot plate.

Four years ago, Geim and his colleagues discovered graphene, the first known one-atom-thick material which can be viewed as a plane of atoms pulled out from graphite. Graphene has rapidly become the hottest topic in physics and materials science.

Now the Manchester team has shown that it is possible to carve out nanometre-scale transistors from a single graphene crystal. Unlike all other known materials, graphene remains highly stable and conductive even when it is cut into devices one nanometre wide.

Graphene transistors start showing advantages and good performance at sizes below 10 nanometres - the miniaturization limit at which the Silicon technology is predicted to fail.

"Previously, researchers tried to use large molecules as individual transistors to create a new kind of electronic circuits. It is like a bit of chemistry added to computer engineering", says Novoselov. "Now one can think of designer molecules acting as transistors connected into designer computer architecture on the basis of the same material (graphene), and use the same fabrication approach that is currently used by semiconductor industry".

"It is too early to promise graphene supercomputers," adds Geim. "In our work, we relied on chance when making such small transistors. Unfortunately, no existing technology allows the cutting materials with true nanometre precision. But this is exactly the same challenge that all post-silicon electronics has to face. At least we now have a material that can meet such a challenge."

"Graphene is an exciting new material with unusual properties that are promising for nanoelectronics", comments Bob Westervelt, professor at Harvard University. "The future should be very interesting".


'/>"/>

Contact: Alex Waddington
alex.waddington@manchester.ac.uk
University of Manchester
Source:Eurekalert

Related biology technology :

1. Graphene gazing gives glimpse of foundations of universe
2. UM physicists show electrons can travel over 100 times faster in graphene than in silicon
3. Researchers create the first thermal nanomotor in the world
4. CryoPort Creates Personal Wall on Wallst.nets Financial Social Community, my.wallst.net
5. ADVENTRX Creates Executive Vice President Position and Announces New Chief Financial Officer
6. Misys and Allscripts Create a Leader in Healthcare Software
7. MIT creates gecko-inspired bandage
8. Researchers create gold aluminum, black platinum, blue silver
9. Venter Institute Scientists Create First Synthetic Bacterial Genome
10. Stemagen First to Create Cloned Human Embryos From Adult Cells
11. Nikon Instruments Partners With Koshland Science Museum to Create the Museums First-Ever Microbe Lab
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/24/2017)... ... May 24, 2017 , ... Today, the South Davis Sewer ... Biological Nutrient Recovery (ABNRâ„¢) technology at its 4,000,000 gallon per day South Plant. ... sustainably meet current and future nutrient discharge regulations. The ABNR platform, which is ...
(Date:5/23/2017)... ... May 23, 2017 , ... Firmex ... that makes it easy for organizations to send and gather large files and ... software or email file size limitations. , Using the same market-tested infrastructure ...
(Date:5/23/2017)... (PRWEB) , ... May 22, 2017 , ... ... and Photonics 2017 in San Diego, California, this August will feature high-level ... fuels, and autonomous vehicles. , SPIE Optics and Photonics, the largest multidisciplinary optical ...
(Date:5/23/2017)... ... May 23, 2017 , ... Cambridge Semantics , the leading provider ... Bio-IT World Conference and Expo in Boston May 23-25 with a featured ... The Anzo Smart Data Lake is also a finalist for the Best of Show ...
Breaking Biology Technology:
(Date:3/30/2017)... 2017 The research team of The Hong ... fingerprint identification by adopting ground breaking 3D fingerprint minutiae recovery and ... speed and accuracy for use in identification, crime investigation, immigration control, ... ... A research team led ...
(Date:3/27/2017)... ROCKVILLE CENTRE, N.Y. , March 27, 2017 ... by Healthcare Information and Management Systems Society (HIMSS) ... Analytics Outpatient EMR Adoption Model sm . In ... top 12% of U.S. hospitals using an electronic ... recognized CHS for its high level of EMR ...
(Date:3/23/2017)... Research and Markets has announced the addition of the ... Forecast to 2025" report to their offering. ... The Global Vehicle Anti-Theft System ... over the next decade to reach approximately $14.21 billion by 2025. ... forecasts for all the given segments on global as well as ...
Breaking Biology News(10 mins):