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:12/6/2016)... ... 06, 2016 , ... Clinical Supplies Management ... acquired the assets of Theorem Clinical Research - Clinical Supplies ("TCS"). TCS ... drug packaging, labeling, storage, reconciliation, and distribution for pharmaceutical trials across Europe. ...
(Date:12/6/2016)... 2016  SRI International has been awarded a ... National Institutes of Health,s National Institute of Allergy ... (NIAID-DAIDS) to support the manufacturing and characterization of ... Under the seven-year contract, SRI will provide a ... candidate HIV-prevention products that emerge from investigator-initiated studies ...
(Date:12/5/2016)... Bermuda , Dec. 5, 2016 Axovant ... clinical-stage biopharmaceutical company focused on the treatment of dementia, ... intepirdine for the treatment of Alzheimer,s disease will be ... (CTAD) Meeting on Friday, December 9, 2016 in ... will show results of both simple and complex measures ...
(Date:12/5/2016)... ... December 05, 2016 , ... In anticipation of AxioMed’s ... disc production, company President, Jake Lubinski will be traveling to Germany on December ... in Cologne and Karlsruhe to discuss the benefits of a viscoelastic total disc ...
Breaking Biology Technology:
(Date:11/22/2016)... 2016 According to the new market research report ... Vein, Signature, Voice), Multi-Factor), Component (Hardware and Software), Function (Contact and Non-contact), ... market is expected to grow from USD 10.74 Billion in 2015 to ... 2016 and 2022. Continue Reading ... ...
(Date:11/17/2016)... LONDON , Nov. 17, 2016 Global Market ... and Public Biobanks (Disease-Based Banks, Population-Based Banks and Academics) market ... Geographical analysis for Private Biobanks shows the highest Compounded Annual ... Asia-Pacific region during the analysis period 2014-2020. ... a CAGR of 9.95% followed by Europe ...
(Date:11/15/2016)... Research and Markets has announced the addition of the "Bioinformatics ... ... The global bioinformatics market is projected ... in 2016, growing at a CAGR of 21.1% during the forecast ... by the growing demand for nucleic acid and protein sequencing, increasing ...
Breaking Biology News(10 mins):