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:7/24/2014)... July 24, 2014 Gain recognition ... Supply Chain of the biotech industry. Nominations are ... Awards, brought to you by the Bio ... of supply chain management professionals for the past ... stakeholders of the Biotech industry – Manufacturers, Service ...
(Date:7/24/2014)... Calif. , July 24, 2014  Now available ... to home. Rehealth Regenerative Therapies , located in ... and other physically active people a new health option: ... Regardless of age, countless patients suffer from joint ... activities, such as muscle tears, torn rotator cuff, tennis ...
(Date:7/24/2014)... 24, 2014  Asterias Biotherapeutics, Inc. (OTCBB: ASTYV), ... of regenerative medicine, announced today that it will ... investors on Tuesday, July 29, 2014, at 4:30 ... include an overview of Asterias, business strategy and ... http://www.ustream.tv/channel/asterias-biotherapeutics at least 15 minutes before ...
(Date:7/24/2014)... , July 24, 2014  ECC West Africa, ... Colorado with University College Hospital (UCH) Ibadan ... development project to finance, design, construct, and operate and ... Nigeria . Under the first of the ... scoping documents and funding applications. UCH Ibadan intends to ...
Breaking Biology Technology:Call for Submission: BSMA’s Supply Chain Management Innovation Awards 2Call for Submission: BSMA’s Supply Chain Management Innovation Awards 3Stem Cells In Sports Injuries, Joints And Muscular Pain 2Stem Cells In Sports Injuries, Joints And Muscular Pain 3Asterias Biotherapeutics Announces Live Investor Webcast 2Asterias Biotherapeutics Announces Live Investor Webcast 3Asterias Biotherapeutics Announces Live Investor Webcast 4ECC Signs a Contract for the Finance, Design, and Construction of a Premier Cancer Institute in Ibadan, Nigeria 2
... Beta-agonists are group A substances of the European guideline ... licensed. Thus, they have to be determined in veterinarian ... of High Pressure Liquid Chromatography (HPLC) and Electrospray Ionization ... method of choice for such thermally labile and polar ...
... Abstract , ... antibody production is a fundamental and well-established technique. However, ... for specific antibodies secreted by hybridomas , ... cell-surface antigens is particularly problematic. We have developed a ...
... housands of engineers ... of applications: test and measurement, process control and ... of choice due to its unparalleled connectivity to instruments, ... programming interface, scalability, and overall function completeness. One ...
Cached Biology Technology:The combination of monolithic columns and modern HPLC/MS/MS instrumentation for high chromatographic throughput and sensitive detection of beta-agonists 2A Mix-and-Read Cell-Based Assay for Hybridoma Screening Using the FMAT , 8100 HTS System 2A Mix-and-Read Cell-Based Assay for Hybridoma Screening Using the FMAT , 8100 HTS System 3A Mix-and-Read Cell-Based Assay for Hybridoma Screening Using the FMAT , 8100 HTS System 4A Mix-and-Read Cell-Based Assay for Hybridoma Screening Using the FMAT , 8100 HTS System 5A Mix-and-Read Cell-Based Assay for Hybridoma Screening Using the FMAT , 8100 HTS System 6LabVIEW for Measurement and Data Analysis 2LabVIEW for Measurement and Data Analysis 3LabVIEW for Measurement and Data Analysis 4LabVIEW for Measurement and Data Analysis 5LabVIEW for Measurement and Data Analysis 6LabVIEW for Measurement and Data Analysis 7LabVIEW for Measurement and Data Analysis 8LabVIEW for Measurement and Data Analysis 9LabVIEW for Measurement and Data Analysis 10LabVIEW for Measurement and Data Analysis 11LabVIEW for Measurement and Data Analysis 12LabVIEW for Measurement and Data Analysis 13LabVIEW for Measurement and Data Analysis 14LabVIEW for Measurement and Data Analysis 15
(Date:7/24/2014)... NY (July 24, 2014) Scientists at The ... are one step closer to creating a viable ... patient,s own cells. , For the first ... cells lines from skin samples of patients with ... an accelerated protocol to induce these stem cells ...
(Date:7/24/2014)... sobering examples of how wildlife loss leads to conflict ... by Wildlife Conservation Society (WCS) Health & Ecosystems: ... calls for an interdisciplinary approach to tackle global biodiversity ... about 15% of the world,s people and provides protein ... It should come as no surprise that today,s unprecedented ...
(Date:7/24/2014)... NY - July 24, 2014 -- Keryx Biopharmaceuticals, Inc. ... the long-term, randomized, active control Phase 3 study of ... phosphate binder, for the treatment of hyperphosphatemia in patients ... study (PhosphatE binding and iRon delivery with FErric CiTrate ... Journal of the American Society of Nephrology ( ...
Breaking Biology News(10 mins):NYSCF scientists one step closer to cell therapy for multiple sclerosis patients 2New study draws links between wildlife loss and social conflicts 2Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 2Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 3Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 4
... University have developed extremely small microneedles that can be ... into skin an advance that opens the door ... of medical conditions, including skin cancer. "We were ... rapid-prototyping approach," says Dr. Roger Narayan, one of the ...
... This release is also available in Chinese on ... -- Future flash memory could be faster and store more data ... proposed by scientists at Taiwan,s Chang Gung University, who describe a ... the journal APPLIED PHYSICS LETTERS , which is published by ...
... determined the fine-scale genetic structure of the first animal ... , They used a high-throughput sequencing technique called Restriction-site ... , Their results, which focus on the pitcher plant ... journal Proceedings of the National Academy of Sciences ...
Cached Biology News:Microneedle, quantum dot study opens door to new clinical cancer tools 2Glorious gadolinium gives flash memory a future 2Genetic structure of first animal to show evolutionary response to climate change determined 2Genetic structure of first animal to show evolutionary response to climate change determined 3
... LabX light balance makes your life easier. It ... acquisition and management for one balance. *Instruments supported: ... TOLEDO AX, MX, UMX, AG, XS, XP, PR, SR, ... balances *Job management: ...
XPLAC (S-17)...
... Physical Form: powder ,Components ... extract 2.5 ,Sodium chloride 2.5 ... ammonium citrate 0.250 ,IPTG 0.025 ... Blend is a complete growth ...
Request Info...
Biology Products: