Navigation Links
Seeing an atomic thickness
Date:5/24/2011

Scientists from the National Physical Laboratory (NPL), in collaboration with Linkping University, Sweden, have shown that regions of graphene of different thickness can be easily identified in ambient conditions using Electrostatic Force Microscopy (EFM).

The exciting properties of graphene are usually only applicable to the material that consists of one or two layers of the graphene sheets. Whilst synthesis of any number of layers is possible, the thicker layers have properties closer to the more common bulk graphite.

For device applications one- and two-layer graphene needs to be precisely identified apart from the substrate and regions of thicker graphene.

Exfoliated graphene sheets up to ~100 μm in size can be routinely identified by optical microscopy. However, the situation is much more complicated in the case of the epitaxial graphene grown on silicon carbide wafers with a diameter up to 5 inches where the straightforward identification of the graphene thickness is difficult using standard techniques.

This research shows that EFM, which is one of the most widely accessible and simplest implementations of scanning probe microscopy, can clearly identify different graphene thicknesses.

The technique can also be used in ambient environments applicable to industrial requirements.


'/>"/>

Contact: Joe Meaney
joe@proofcommunication.com
07-875-469-309
National Physical Laboratory
Source:Eurekalert

Page: 1

Related biology technology :

1. Seeing in stereo: Engineers invent lens for 3-D microscope
2. Seeing double: Africas 2 elephant species
3. Seeing the world with new eyes: Biosynthetic corneas restore vision in humans
4. Seeing moire in graphene
5. Seeing the quantum in chemistry: JILA scientists control chemical reactions of ultracold molecules
6. Getting the point: Real-time monitoring of atomic-microscope probes adjusts for wear
7. Probing atomic chicken wire
8. 3-D nanoparticle in atomic resolution
9. Manufacturing made to measure atomic-scale electrodes
10. Unprecedented look at oxide interfaces reveals unexpected structures on atomic scale
11. Depth charge: Using atomic force microscopy to study subsurface structures
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... Francisco, CA (PRWEB) August 20, 2014 ... Conference is being held on October 29-30 in ... perspectives from industry, academic and government researchers and clinicians ... in the space. , In the twelve years ... one hundred therapies have been introduced with pharmacogenetic information ...
(Date:8/20/2014)... WriteResult®, a leading provider of Electronic Patient Outcome ... myPROpad™ ePRO tablet with the addition of a touchscreen ... widely used and well-respected Patient Reported Outcome (PRO) instruments ... used during clinical trials and in other health care ... to demonstrate Health-Related Quality of Life outcomes (HRQoL) resulting ...
(Date:8/19/2014)... Research and Markets  has announced the addition of ... Report" report to their offering. This report ... US$ Thousands by the following Product Segments: Media, Sera, and Reagents. ... Canada , Japan , ... Latin America . Annual estimates and forecasts are provided ...
(Date:8/19/2014)... (PRWEB) August 19, 2014 Robin Williams’ ... disease can take on an individual. Symptoms range ... facial expression, problems swallowing and severe depression. Parkinson’s ... dying off of dopamine producing neurons of the brain. ... a disease that slowly and progressively gets worse, they ...
Breaking Biology Technology:6th Annual Personalized and Precision Medicine Conference Bringing Together Thought Leaders to Discuss Clinical Implementation, Dx Reimbursement, Big Data, and Sequencing 2EQ-5D™ Assessment Now Available for iPad 2Global Cell and Tissue Culture Supplies - Strategic Business Report 2014 2As We Mourn Robin Williams’ Passing, His Death Sheds Light on Patients Struggling with Parkinson’s Disease 2As We Mourn Robin Williams’ Passing, His Death Sheds Light on Patients Struggling with Parkinson’s Disease 3
... 22 Edwards Lifesciences,Corporation (NYSE: EW ... of heart valves,today announced the opening of ... North Crescent, Singapore. The state-of-the-art facility produces,Edwards, ... also serves as the headquarters for Edwards, ...
... 22 Celldex,Therapeutics (a wholly-owned subsidiary of AVANT,Immunotherapeutics)(Nasdaq: ... product,candidate, CDX-110, being developed for the treatment of ... oral presentation at the 44th,Annual Meeting of the ... will be held at McCormick Place in Chicago ...
... to Add Valuable Clinical Development Expertise, SAN ... company focused on the development of novel Toll-Like,Receptor ... respiratory and,autoimmune diseases, announced today the appointment of ... "We are pleased to have Elliott join our ...
Cached Biology Technology:Edwards Lifesciences Opens New Singapore Heart Valve Facility 2AVANT Immunotherapeutics Announces Oral Presentation of CDX-110 at ASCO Annual Meeting 2AVANT Immunotherapeutics Announces Oral Presentation of CDX-110 at ASCO Annual Meeting 3VentiRx Pharmaceuticals Appoints Dr. Elliott Grossbard to Board of Directors 2
(Date:8/20/2014)...  The second annual Biometrics UnPlugged Executive Summit, ... Florida on September 15, 2014, will ... and Strategy at Samsung, and Philippe de Raet, Vice ... this year,s event is Mobility at the Crossroads ... UnPlugged: Mobility at the Crossroads of Commerce & ...
(Date:8/19/2014)... 19, 2014 To improve students, chances of ... the University of Houston (UH) implemented a comprehensive ... at risk for failure. , Through a ... (THECB), the Department of Biology and Biochemistry embarked ... taking "General Biology" for non-majors and "Introductory Biology" ...
(Date:8/19/2014)... German . ... If a large amount of electricity is to be produced ... have to be stored during productive periods so that these ... far from adequate for the purpose. Science and industry are ... on battery systems that used to be too expensive or ...
Breaking Biology News(10 mins):Biometrics UnPlugged: Mobility at the Crossroads of Commerce & Privacy to Feature Interactive Sessions with Samsung and Experian 2University of Houson program earns kudos for improving grades, retaining students 2University of Houson program earns kudos for improving grades, retaining students 3Asian inventions dominate energy storage systems 2Asian inventions dominate energy storage systems 3
... Boston, MA Using 120 years of feathers ... University researchers have been able to track increases in ... nigripes ), an endangered seabird that forages extensively throughout ... the observed increase in methylmercury levels, most likely from ...
... University of the Negev software engineering students have developed ... computer without using a keyboard or mouse only ... to develop devices to read brainwaves and operate specific ... a laboratory setting. The BGU ...
... April 18, 2011 Mention vitamin D-fortified foods and ... with the sunshine vitamin since the 1930s. A new ... Challenges/Chemistry Solutions" podcast series says that vitamin D-fortified bread ... essential nutrient that is difficult to get naturally in ...
Cached Biology News:Mercury on the rise in endangered Pacific seabirds 2
WASF2 Immunogen: WASF2 (NP_008921, 73 a.a. ~ 173 a.a) partial recombinant protein with GST tag. Storage: -20 C, Avoid Freeze/Thaw Cycles *Available for distribution in the US only...
Anti 7H6 Antigen (tight-junction associated protein Antigen) Monoclonal Antibody 7H6...
...
Sheep polyclonal to Malate Dehydrogenase ( Abpromise for all tested applications). Antigen: Full length protein - Pig heart malate dehydrogenase. Entrez Gene ID: 4190 Swiss Protein ID: P...
Biology Products: