Navigation Links
Water could hold answer to graphene nanoelectronics
Date:10/26/2010

Troy, N.Y. Researchers at Rensselaer Polytechnic Institute developed a new method for using water to tune the band gap of the nanomaterial graphene, opening the door to new graphene-based transistors and nanoelectronics.

By exposing a graphene film to humidity, Rensselaer Professor Nikhil Koratkar and his research team were able to create a band gap in graphene a critical prerequisite to creating graphene transistors. At the heart of modern electronics, transistors are devices that can be switched "on" or "off" to alter an electrical signal. Computer microprocessors are comprised of millions of transistors made from the semiconducting material silicon, for which the industry is actively seeking a successor.

Graphene, an atom-thick sheet of carbon atoms arranged like a nanoscale chain-link fence, has no band gap. Koratkar's team demonstrated how to open a band gap in graphene based on the amount of water they adsorbed to one side of the material, precisely tuning the band gap to any value from 0 to 0.2 electron volts. This effect was fully reversible and the band gap reduced back to zero under vacuum. The technique does not involve any complicated engineering or modification of the graphene, but requires an enclosure where humidity can be precisely controlled.

"Graphene is prized for its unique and attractive mechanical properties. But if you were to build a transistor using graphene, it simply wouldn't work as graphene acts like a semi-metal and has zero band gap," said Koratkar, a professor in the Department of Mechanical, Aerospace, and Nuclear Engineering at Rensselaer. "In this study, we demonstrated a relatively easy method for giving graphene a band gap. This could open the door to using graphene for a new generation of transistors, diodes, nanoelectronics, nanophotonics, and other applications."

Results of the study were detailed in the paper "Tunable Band gap in Graphene by the Controlled Adsorbtion of Water M
'/>"/>

Contact: Michael Mullaney
mullam@rpi.edu
518-276-6161
Rensselaer Polytechnic Institute
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Waters Corporation and UCLA to Convene Leading Life Scientists
2. High-speed filter uses electrified nanostructures to purify water at low cost
3. MO BIO Laboratories, Inc. DNA Isolation Products Used to Analyze Microbes Present in Deepwater Horizon Oil Plume
4. FRC Systems International State-of-the-art Industrial Wastewater Treatment Systems
5. Indian Multinational Company Confirms USD 6 Million Order to Set up Industrial Waste Water Treatment Plants in Africa
6. A warmer future for watersports
7. Zymes’ Water Soluble CoQ10 Decreases Symptoms in Animal Models of Parkinson’s Disease
8. DuPont Leader: Agricultural Improvements Key to Meeting Growing Food, Water Needs in Africa
9. Florida Water Resources Annual Conference Focuses on Numeric Nutrient and Other Water Issues
10. Waters and DAISO Sign Marketing Agreement for Bulk Process Chromatography Media
11. Life Sciences Venture Capital Funding Overcomes Record Lows, Outpaces Other Sectors, According to PricewaterhouseCoopers
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Water could hold answer to graphene nanoelectronics
(Date:4/24/2015)... San Diego, CA (PRWEB) April 24, 2015 ... San Diego and other San Diego area universities, including ... April 28 to judges from prominent local, national and ... seed funding in the 5th Annual Social Innovation ... finalists have proposed unique social venture ideas addressing a ...
(Date:4/24/2015)... , April 24, 2015 /PRNewswire/ - BioAmber Inc. ... Bayer MaterialScience as the supplier of bio-succinic acid ... bio-based polyurethanes for textile applications that Bayer MaterialScience ... has launched IMPRANIL ® eco, a series ... that reaches as high as 65%.  IMPRANIL ® ...
(Date:4/24/2015)... , April 24 , 2015 PAREXEL ... biopharmaceutical services provider, today announced that Partnerships in Clinical ... Product Management, the 2015 Clinical Innovator of the Year.  ... development team for the Company,s Perceptive MyTrials ® ... award Thursday night during the 2015 Partnership Awards in ...
(Date:4/23/2015)... Mount Dora, Florida (PRWEB) April 23, 2015 ... announced that it intends to conduct a groundbreaking ... can begin to be reversed in as little ... researchers—using the science of metabolic and nutritional medicine—will ... conditions that cripple and destroy our aging brain. ...
Breaking Biology Technology:5th Annual Social Innovation Challenge at University of San Diego - Students Pitch to Live Judging Panel to Take Home $75K 25th Annual Social Innovation Challenge at University of San Diego - Students Pitch to Live Judging Panel to Take Home $75K 3Bayer MaterialScience Names BioAmber As Its Supplier For New Product Line - Bio-succinic acid forms backbone of innovative new bio-based polyurethanes for textiles 2Bayer MaterialScience Names BioAmber As Its Supplier For New Product Line - Bio-succinic acid forms backbone of innovative new bio-based polyurethanes for textiles 3Bayer MaterialScience Names BioAmber As Its Supplier For New Product Line - Bio-succinic acid forms backbone of innovative new bio-based polyurethanes for textiles 4PAREXEL Honored With 2015 Clinical Innovator Of The Year Award From Partnerships In Clinical Trials 2PAREXEL Honored With 2015 Clinical Innovator Of The Year Award From Partnerships In Clinical Trials 3PAREXEL Honored With 2015 Clinical Innovator Of The Year Award From Partnerships In Clinical Trials 4PAREXEL Honored With 2015 Clinical Innovator Of The Year Award From Partnerships In Clinical Trials 5New Study Looks to Reverse Alzheimer’s Disease 2New Study Looks to Reverse Alzheimer’s Disease 3
... has discovered and characterized a promising chemically modified Vitamin ... In animal studies, 2MD increases bone growth while leaving ... times the level of other compounds. , ,According to ... levels in the blood. Too little calcium can cause ...
... MADISON - A veteran television reporter recently asked me to ... expect to find jobs after they complete their education. The ... know, I would invest every penny I have in those ... Labor Day passes in Wisconsin, the question about jobs for ...
... MADISON, WI - The U.S. Department of Health and ... Regional Centers of Excellence (RCE) for Biodefense and Emerging ... with 11 other Midwestern institutions to form the Midwestern ... The Midwestern center, based at the University of Chicago ...
Cached Biology Technology:Biotech Pioneer Discusses Breakthrough in Osteoporosis Treatment 2Heres how todays Wisconsin children will find jobs tomorrow 2Heres how todays Wisconsin children will find jobs tomorrow 3UW-Madison Gets Federal Biodefense Funds 2
(Date:4/14/2015)... , April 14, 2015  HYPR Corp. today ... (FIDO ® ) Alliance tm , an industry ... members commit to share technology and collaborate to ... are interoperable, more secure and private, and easier ... identity verification that protects sensitive user information and ...
(Date:4/9/2015)... Calif. , April 9, 2015 Synaptics ... interface solutions, announced today that it will report financial ... Thursday, April 23, 2015, after the close of market. ... analysts and investors at 2:00 p.m. PT (5:00 p.m. ... To participate on the live call, analysts ...
(Date:4/2/2015)... Sweden , April 2, 2015 ... for Q1 2015 attributed to somewhat higher than 125 ... in the year-end report 2014 that revenues for Q1 ... that the company reported for Q4 2014. The operating ... to be negative. The complete interim report will as ...
Breaking Biology News(10 mins):HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3Synaptics to Report Third Quarter Results on April 23 2Fingerprint Cards Revises Revenues for Q1 2015 2
... of Minnesota Medical School and the Brain Sciences Center ... new way to assess how brain networks act together. ... (New Mexico) led Apostolos P. Georgopoulos, M.D., Ph.D., professor ... novel way to assess the dynamic interactions of brain ...
... to develop a new device able to 'sniff out' harmful ... non-invasive wound monitor to treat patients with severe burns, skin ... a device which is able to detect harmful bacteria in ... When bacteria metabolises inside a wound molecules of that bacteria ...
... Australia's policy of restricting antibiotic use in food-producing animals ... found in its citizens, according to an article in ... available online. , Campylobacter jejuni is a leading ... resistance can make Campylobacter infections difficult for physicians to ...
Cached Biology News:Wound monitor 'sniffs out' infections 2Less antibiotic use in food animals leads to less drug resistance in people, study shows 2
... Specialty Chemistries, QC, Reagent Development, Pharmaceutical Development, Physician Owned Labs, Drugs of Abuse, and Industrial ... ... ... ...
... System creates isogenic cell lines all ... the protein of interest. This homogeneous ... In this experiment the coding sequence ... into pcDNA5/FRT and transfected into Flp-In-293 ...
For the quantitative determination of cyclic AMP (cAMP) concentrations in cell culture supernates, serum, plasma, saliva, urine and cell lysates....
SHEEP ANTI BOVINE LACTOPEROXIDASE...
Biology Products: