Navigation Links
UCR scientists manipulate ripples in graphene, enabling strain-based graphene electronics
Date:7/26/2009

ology.

Because graphene is both an excellent conductor and the thinnest elastic membrane, the ripples could have profound implications for graphene-based electronics.

"This is because graphene's ability to conduct electricity is expected to vary with the local shape of the membrane," Lau said. "For instance, the ripples may produce effective magnetic fields that can be used to steer and manipulate electrons in a nanoscale device without an external magnet."

Lau, an associate professor of physics and a member of UCR's Center for Nanoscale Science and Engineering, and her colleagues examined the ripples' morphology using a scanning electron microscope and an atomic force microscope. They found that almost all the graphene membranes underwent dramatic morphological changes when heated, displaying significant alterations in the ripple geometry, a buckling of the graphene membrane, or both.

Their experimental system, which involved a stage inside a scanning electron microscope (SEM) with a built-in heater, thermometer and several electrical feed-throughs, enabled them to image graphene while it was being heated and explore the interplay between graphene's mechanical, thermal and electrical properties.

"Our result has important implications for controlling thermally induced stress in graphene electronics," Lau said. "Our ability to control and manipulate the ripples in graphene sheets represents the first step towards strain-based graphene engineering. We show that suspended graphene is almost invariably rippled, and this may need to be considered in the interpretation of a broad array of existing and future research."

Proposed to supplement or replace silicon as the main electronic material, graphene is a single layer of graphite. Even though graphite has been studied for decades, the single sheet first was isolated experi
'/>"/>

Contact: Iqbal Pittalwala
iqbal@ucr.edu
951-827-6050
University of California - Riverside
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Gladstone scientists uncover potential mechanism of memory loss in Alzheimers disease
2. Three Studies by Independent Scientists Highlighting Pressure Cycling Technology (PCT) to be Presented this Week at the British Mass Spectrometry Societys 29th Annual Meeting
3. Social Network for Scientists Marks Ten Years Online
4. Scientists synthesize memory in yeast cells
5. Scientists synthesize memory in yeast cells
6. University of Leicester scientists discover technique to help friendly bacteria
7. Scientists discover how cancer may take hold
8. Yale scientists make 2 giant steps in advancement of quantum computing
9. New Scientists Boost Disease-based Research at Boston Biomedical Research Institute
10. Scientists say sabercat bit like a pussycat
11. New Corporate Website Launched - Focus on Life Scientists, Flow Cytometrists, & Clinicians
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
UCR scientists manipulate ripples in graphene, enabling strain-based graphene electronics
(Date:9/16/2014)... Sept. 16, 2014  Biocom, the association representing the ... recognizes the 9 th Annual National Health Information ... IT technologies in improving our health care system. ... one of the world,s most vibrant hubs for health ... health applications to genomic testing to remote patient monitoring," ...
(Date:9/16/2014)... From cell phones to cars and flashlights, ... Scientists and technology companies constantly are seeking ways ... the first time using a water-based solution, researchers ... long-lasting and more efficient nuclear battery that could ... reliable energy source in automobiles and also in ...
(Date:9/16/2014)... BlueInGreen® , a water quality company ... dissolved gases into liquids, announced the addition of ... representative firm to its sales network. H2Flow will ... and wastewater applications in the Canadian provinces of ... 1992 and serves Quebec and Ontario markets for ...
(Date:9/16/2014)... Sept. 16, 2014  Donald Fresne, President and CEO of ... Stephan Vagner , PhD to its Scientific Advisory Committee. ... Toulouse, France , performed research at Embl (European ... at Inserm, the French institute of health and medical research. ... at the Curie Institute, Orsay, France , ...
Breaking Biology Technology:Biocom Recognizes National Health IT Week 2BlueInGreen® Expands into Canada – Signs Representative Agreement with H2Flow Equipment Inc. 2New Appointment to the Scientific Advisory Committee at Egenix, Inc. 2
... Voler Systems ( http://www.volersystems.com ), a provider of electronic ... same period last year. , "Voler Systems, consulting for ... firms are turning to Voler for design and development ... for human use. We remain optimistic about Voler,s position ...
... ... terrorism, accident, or improper disposal of radioactive materials will surely contaminate ... population with increased cancer and associated illnesses and the enormous cost ... to this threat, Technical Associates created the models NexGen-SSS and UniTect. ...
... PDL BioPharma, Inc. (PDL) (Nasdaq: PDLI ) today announced that ... a.m. Eastern Time on Wednesday, October 28 to discuss its financial ... update. The call and webcast will follow the release of the ... , Conference Call Details , To access the ...
Cached Biology Technology:Voler Systems Reports 50% Growth 2Safety in Drinking Water? Monitoring for Radioactive Contaminants Only Required Every Three, Six, or Nine Years per Federal Law 2Safety in Drinking Water? Monitoring for Radioactive Contaminants Only Required Every Three, Six, or Nine Years per Federal Law 3Safety in Drinking Water? Monitoring for Radioactive Contaminants Only Required Every Three, Six, or Nine Years per Federal Law 4PDL BioPharma Reschedules Third Quarter 2009 Financial Results Conference Call for 8:30 a.m. ET on October 28, 2009 2
(Date:9/16/2014)... 16, 2014  Valencell, Inc., a leader in performance ... of 18 "Showcase Companies" representing North Carolina,s ... CED Tech Venture Conference on September 16-17 th ... in Raleigh, North Carolina . Valencell,s ... discussion during the "Digital Health Spotlight Sector" on how ...
(Date:9/15/2014)... CAMBRIDGE, Mass. (September 15, 2014) The so-called ... which makes proteinhas long provided a simplified explanation ... in living organisms. , In reality, of ... the schema first articulated nearly 60 years ago ... DNA,s double-helix structure. For one, there are multiple ...
(Date:9/15/2014)... source of energy for both plants and animals alike. ... the cell could lead to the design of better ... amount of fruits and vegetables farmers are able to ... these "pathways" into the cell by piecing together proteins ... spider silk. , To determine the size, shape and ...
Breaking Biology News(10 mins):Valencell, Inc. Selected as 'Showcase Company' at CED Tech Venture Conference 2014 2Scientists discover RNA modifications in some unexpected places 2X-rays unlock a protein's SWEET side 2X-rays unlock a protein's SWEET side 3
... significantly advance our understanding of the genetic basis of ... past year. They are the users of a web-based ... McGill School of Computer Science and collaborator Mathieu Blanchette. ... contribute to scientific research by arranging multiple sequences of ...
... fruit flies use to sense heat and chemicals may someday ... mosquitoes. , In the current issue of Nature , ... at Brandeis University and his team, spearheaded by KyeongJin Kang ... flies distinguish the warmth of a summer day from the ...
... 2011   Security Management Systems (SMS) , a ... an advanced data center security system for Oracle ... Services Corporation. Based in Somerset, New ... providing Oracle-based business operations solutions and information systems, ...
Cached Biology News:Video game players advancing genetic research 2Addressing pain and disease on the fly 2Security Management Systems (SMS) Completes Oracle Data Center Security Project for Core Services Corporation 2Security Management Systems (SMS) Completes Oracle Data Center Security Project for Core Services Corporation 3
... identification Service includes 1. Scanning of ... 3. High-sensitive tryptic in-gel digestion and ... for MALDI-MS 5. Acquisition of PMF ... (Bruker ultraflex TOF/TOF) 6. Acquisition of ...
Each Yeast-GFP clone represents an individual S. cerevisiae strain containing an open reading frame with a C-terminal Aequorea Victoria GFP (S65T) fusion tag....
... number is a new product number, ... number. If showing no availability yet, ... number (R4276) or contact customer service ... (expanded surface, easy grip) ...
... stored within neurons in vesicles called ... the synaptic bouton. Synaptosomes may ... from other cellular debris. Abnormalites in ... many pathological condtions. Conditions of ...
Biology Products: