Navigation Links
Innovation is step toward digital graphene transistors
Date:9/6/2011

WEST LAFAYETTE, Ind. - Researchers are making progress in creating digital transistors using a material called graphene, potentially sidestepping an obstacle thought to dramatically limit the material's use in computers and consumer electronics.

Graphene is a one-atom-thick layer of carbon that conducts electricity with little resistance or heat generation. After its discovery in 2004 - which earned a Nobel Prize in physics - it was touted as a potential replacement for silicon, possibly leading to ultrafast devices with simplified circuits that might be less expensive to manufacture.

However, graphene's luster has dulled in recent years for digital applications as researchers have discovered that it has no "band gap," a trait that is needed to switch on and off, which is critical for digital transistors.

"The fact that graphene is a zero-band-gap material by nature has raised many questions in terms of its usefulness for digital applications," said Purdue doctoral student Hong-Yan Chen.

Electrons in semiconductors like silicon exist at two energy levels, known as the valence and conduction bands. The energy gap between these two levels is called the band gap. Having the proper band gap enables transistors to turn on and off, which allows digital circuits to store information in binary code consisting of sequences of ones and zeroes.

Chen has led a team of researchers in creating a new type of graphene inverter, a critical building block of digital transistors. Other researchers have created graphene inverters, but they had to be operated at 77 degrees Kelvin, which is minus 196 Celsius (minus 320 Fahrenheit).

"If graphene could be used in digital applications, that would be really important," said Chen, who is working with Joerg Appenzeller, a professor of electrical and computer engineering and scientific director of nanoelectronics at Purdue's Birck Nanotechnology Center.

The Purdue researcher
'/>"/>

Contact: Emil Venere
venere@purdue.edu
765-494-4709
Purdue University
Source:Eurekalert  

0

GOOD

Page: 1 2

Related biology technology :

1. Swedish University Hospital Improves Monitoring of Treatment Efficacy in Multiple Sclerosis With Synthetic MRI Innovation
2. Center for Proteomics at the Translational Genomics Research Institute (TGen) Selected as Waters Center of Innovation
3. From Leadership to Legal Issues, NineSigma Shares Best Practices in an Authoritative Guide to Open Innovation and CrowdSourcing
4. Waters Recognizes Albert J. Fornace Laboratory at Georgetown University Medical Center as a Center of Innovation
5. PleuraFlow Captures Prestigious Innovation Award
6. Leading Life Sciences Luminaries Connect at Innovation Ireland Reception
7. Austen BioInnovation Institute in Akron Begins Work on Roadmap for First U.S. Accountable Care Community
8. Genesis Biosciences Receives Pulire Innovation Award for e card Sanitary Bin Treatment Product
9. Cmed Technology to Preview New Innovations to Speed and Streamline Electronic Trials at DIA Conference
10. Reportlinker Adds Innovations in Protein Kinase Therapies - Significant Proportion of Protein Kinase Pipeline Contains Small Molecule Drugs That Target Oncology
11. Overview of CSL Behring Innovations in Recombinant Technologies Presented at International Conference
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Innovation is step toward digital graphene transistors
(Date:5/17/2013)... May 17, 2013 The paradigm of ... biological systems that can help predict the adverse and ... Sergey Stepaniants, Head of Computational Biology at the Genomics ... tools to ensure high-quality genomics when used as part ... applied to complex data sets to identify key clinical ...
(Date:5/17/2013)... Seattle, WA (PRWEB) May 17, 2013 Rust ... several metals and non-metal home items could be damaged. To ... advised the use of its no-scrubbing rust remover ... would be able available with 10% discount. , My Cleaning ... – by corroding them or by staining them. The ...
(Date:5/17/2013)... May 17, 2013 Tooth decay is an ... active signs of the disease. The World Health Organization says ... 100% of adults have cavities. What are the long-term effects ... showing a strong connection between the oral bacterial imbalance and ... disease so rampant, yet it is also 100% preventable? Answer: ...
(Date:5/16/2013)... ISPE announced today that ... the newly created position of Vice President of ... be responsible for stimulating ISPE’s revenue growth by ... Society’s Member-led and staff-driven business model, initiating integrated ... membership and product marketing. , “Barbara joins ISPE ...
Breaking Biology Technology:Organic-Based Rust Remover Cuts Down Price by 10%, My Cleaning Products Details Mechanics How to Get the Discount 2Seeing the Future: How a Revolutionary New Bacterial Screening Device Can Predict a Patient’s Future for Tooth Decay 2Seeing the Future: How a Revolutionary New Bacterial Screening Device Can Predict a Patient’s Future for Tooth Decay 3ISPE Names Barbara A. Myers, CAE, as Vice President of Professional Development 2
... Systems, Inc (OTC: OMCM.OB) today announced that it ranked ... of 500 of the fastest growing technology, media, telecommunications, ... Rankings are based on the percentage of fiscal year ... 445 percent during this period. OmniComm,s CEO, ...
... Beating the flu is already tough, but it has become even ... so that two antiviral drugs don,t slow it down anymore. ... Florida State and Brigham Young move closer to understanding why not, ... how it changes. The two drugs, amantadine and rimantadine, are ...
... and existing in the limbo between a solid and a ... efficiency of chemical catalysts that can create better nanoparticles or ... transitional state, a catalyst can achieve its utmost potential with ... to a pair of Duke University researchers. A catalyst is ...
Cached Biology Technology:OmniComm Ranks Number 220 on Deloitte's 2010 Technology Fast 500 for Fastest Growing Companies in North America 2OmniComm Ranks Number 220 on Deloitte's 2010 Technology Fast 500 for Fastest Growing Companies in North America 3Putting a bull's-eye on the flu: Detailing influenza's structure for drug targeting 2Smaller is better in the viscous zone 2
(Date:5/17/2013)... Sustainable Global Logistics Operations) is aiming to cut CO2 ... intermodal loading systems and the boosting of intelligent systems ... with experience in the logistics sector and in supply ... a duration of three and a half years. , ... components and ontologies shared by the users, objects and ...
(Date:5/16/2013)... Illustrating a commitment to the support of underrepresented ... Research Foundation has announced the inaugural AGA Investing ... Supported by the National Institute of Diabetes and ... helps underrepresented minority students to further their research ... "By establishing this new award, AGA demonstrates its ...
(Date:5/16/2013)... scientists have used ancient shorelines to predict the stability of ... a high shoreline from three million years ago, for example ... were thought to be evidence of a high sea level ... has led many scientists to think that if the world,s ... do just the same in our modern, progressively warming world. ...
Breaking Biology News(10 mins):New logistics services that will cut energy consumption and CO2 emissions 2Underrepresented minority students receive fellowships in digestive disease and nutrition research 2World's biggest ice sheets likely more stable than previously believed 2
... got its moment in the spotlight. Peter et ... cells might ameliorate the most severe form of ... mutated dystrophin protein fails to anchor correctly to ... muscle cells experience severe contraction-induced damage. Sarcospan is ...
... flu vaccine appear to be less likely to catch the ... year. This is according to new research published in ... The study looked at children between 6 months (the youngest ... 2003-2004 and 2004-2005. The study found that, even though those ...
... Adding an artificial tumor-specific receptor to immune system ... and improved the cells, ability to fight a form ... College of Medicine and Texas Children,s Hospital in a ... Nature Medicine . "This is a way to ...
Cached Biology News:Flu shot protects kids -- even during years with a bad vaccine match 2A double-barreled immune cell approach for neuroblastoma 2
... Place IndicationIncludes all the features of Tracker, plus ... stopped for a user defined period of time ... is a family of instruments all built around ... software and that can track two fields at ...
... of movement counts, similar to an infrared beam ... 6 subjects at once, in two frames of ... whole experimental group at once, and allow social ... for a variety of other spatial behavior situations, ...
... An accessory to the Spatial Behavior System. ... session, either entirely or automatically selected parts, and ... Fast replay or slow replay.The Spatial Behavior line ... a video camera, frame grabber, and feature extraction ...
... Grade C 19 H 9 Br 4 ... SPECIFICATIONS Form: Powder Clarity of Solution: Passes ... - Yellow pH 4.6 - Blue ... agarose and acrylamide gel electrophoresis. Used in ...
Biology Products: