Navigation Links
Light-emitting triangles may have applications in optical technology
Date:2/5/2013

For the first time, scientists have created single layers of a naturally occurring rare mineral called tungstenite, or WS2. The resulting sheet of stacked sulfur and tungsten atoms forms a honeycomb pattern of triangles that have been shown to have unusual light-emitting, or photoluminescent, properties. According to team leader Mauricio Terrones, a professor of physics and of materials science and engineering at Penn State, the triangular structures have potential applications in optical technology; for example, for use in light detectors and lasers. The results of the research will be published in a print edition of the journal NANO Letters.

Terrones explained that creating monolayers -- single, one-atom-thick layers -- is of special interest to scientists because the chemical properties of minerals and other substances are known to change depending on their atomic thickness, opening the door to potentially useful applications of multi-layered materials of various thicknesses. In previous research, scientists had accomplished the feat of making a monolayer of graphene -- a substance similar to the graphite found in pencil leads. "The technique these researchers used was tedious, but it worked," Terrones said. "They basically removed, or exfoliated, the graphene, layer by layer, with Scotch tape, until they got down to a single atom of thickness."

Now, for the first time, Terrones and his team have used a controlled thermal reduction-sulfurization method -- or chemical vapor deposition -- to accomplish the same feat with a rare mineral called tungstenite. The scientists began by depositing tiny crystals of tungsten oxide, which are less than one nanometer in height, and they then passed the crystals through sulfur vapor at 850 degrees Celsius. This process led to individual layers -- or sheets -- composed of one atom in thickness. The resulting structure -- called tungsten disulfide -- is a honeycomb pattern of triangles consisting o
'/>"/>

Contact: Barbara Kennedy
science@psu.edu
814-863-4682
Penn State
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Triangles guide the way for live neural circuits in a dish
2. Researchers love triangles
3. Versalis and Yulex partner to produce guayule-based biorubber for consumer, medical and industrial applications
4. Prizmatix Introduces Ultra High Power LED with Over 4 Watts of Collimated White Light for Scientific and Industrial Applications
5. Nanofiber Production Device Set to Accelerate Research into Nanofiber Applications in Medicine
6. Liquid crystal research, future applications advance
7. UT Arlington research team wins $1.35 million NSF robotics grant to develop smart skin applications
8. Lighthouse Worldwide Solutions Ramps Production of NanoCount 30+ Liquid Particle Counters for High Purity Water Applications
9. Strengthening fragile forests of carbon nanotubes for new MEMS applications
10. Portable Spectrometer From Ocean Optics Ideal for Field Applications
11. Air Products to Feature Medical and Industrial Grade Gas Solutions for Pharma, Biotech, and Life Science Applications at Mid-Atlantic Bio Conference
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Light-emitting triangles may have applications in optical technology
(Date:5/21/2013)... The results of a new study led by ... computational evidence that nucleation of ice in small ... understanding water,s behavior at the nanoscale. The formation ... basic scientific research question whose answer also has ... , The crystallization of ice from supercooled ...
(Date:5/21/2013)... NC (PRWEB) May 21, 2013 ... financial services company for clinical trials, announced today ... Spend Solutions, LLC. Clinverse’s ClinPay® FLS eClinical ... investigator payment process. SpendMD ™, Aggregate ... complete solution for tracking and reporting transfer of ...
(Date:5/21/2013)... (PRWEB) May 21, 2013 Many have ... as contributor to acne. Recently physicians from Clinical ... mental stress on the skin, and suggested using ... reduce the chemicals produced from stress that cause acne. ... the negative feelings acne brings about, stress causes changes ...
(Date:5/21/2013)... -- Personal Genome Diagnostics Inc. (PGDx), today announced that ... in genomic analysis of defined cancer subtypes to ... Medicines.  PGDx is an innovator in conducting patient-specific ... and Blueprint Medicines is an expert in developing ... patient population. "This collaboration brings together ...
Breaking Biology Technology:Study led by GW professor provides better understanding of water's freezing behavior at nanoscale 2Clinverse, Inc. Announces Strategic Alliance with Aggregate Spend Solutions, LLC 2Clinverse, Inc. Announces Strategic Alliance with Aggregate Spend Solutions, LLC 3Adult Acne Treatment, Probiotic Action Explains How Hypnotherapy and Probiotics May Cure Various Skin Conditions 2Personal Genome Diagnostics And Blueprint Medicines Form Collaboration to Identify Novel Kinase Targets 2Personal Genome Diagnostics And Blueprint Medicines Form Collaboration to Identify Novel Kinase Targets 3
... April 6 /PRNewswire-Asia/ -- Pharmaceutical company Pharmaxis,(ASX: PXS; Nasdaq: ... life,science investment manager Richard van den Broek to its Board ... Broek is founder and managing partner of HSMR Advisors LLC, ... and mid-cap,biotech public companies. HSMR Advisors has held a ...
... and GILROY, Calif., April 6 The Department of ... of Medicine and OmegaGenesis, Inc., announced an agreement to ... The agreement includes joint work in support of ... information and education to medical professionals and patients globally.Diabetic ...
... Online, announced today a strategic partnership with Scottsdale Clinical ... oncologists with cutting edge knowledge discovery and collaboration tools ... will enable more access to the latest therapies to ... to find and communicate with each other about difficult ...
Cached Biology Technology:New Pharmaxis Board Appointment 2The University of Arizona College of Medicine and OmegaGenesis Announce Collaboration Agreement to Address Diabetic Foot Ulcers 2The University of Arizona College of Medicine and OmegaGenesis Announce Collaboration Agreement to Address Diabetic Foot Ulcers 3The University of Arizona College of Medicine and OmegaGenesis Announce Collaboration Agreement to Address Diabetic Foot Ulcers 4MedTrust Online and Scottsdale Clinical Research Institute at Scottsdale Healthcare Announce Collaboration to Provide Cutting Edge Technology to Improve Patient Care 2
(Date:5/21/2013)... The American Chemical Society (ACS), the world,s largest ... 246th National Meeting & Exposition, September 8-12, 2013, ... the Indiana Convention Center and at area hotels. ... discoveries that span science,s horizons from astronomy ... broadcast and online journalists a rich assortment of ...
(Date:5/21/2013)... of biomass experts , Where? Copenhagen, ... 03-07 June 2013 , Why? ... assessment, market and policy developments, manufacturing and installation, drawing ... benefiting from its 2013 edition from a record of ... countries, more than 240 plenary and oral presentations, more ...
(Date:5/21/2013)... ANDOVER, Mass. , May 21, 2013 ... that CX50 xMATRIX, the world,s first portable ultrasound with ... Intracardiac Echo (ICE) capability. The CX50 xMATRIX with available ... Paris at the EuroPCR, official ... (EAPCI), May 21-24. Since its launch in ...
Breaking Biology News(10 mins):21st European Biomass Conference and Exhibition 221st European Biomass Conference and Exhibition 321st European Biomass Conference and Exhibition 4Philips CX50 xMATRIX now offers world-class interventional and diagnostic features on single portable system 2
... of Eve to the venomous murder of the mighty Thor, ... of mischief and misery. The worldwide prominence of ... to the serpentbut why, when so few of us have ... Davis, anthropology professor Lynne A. Isbell suggests, lies in the ...
... the first time, experts have compiled a comprehensive overview ... for the treatment of several cancers. , Personalizing Cancer ... of results of therapeutic regimens across a broad range ... Journal of Nuclear Medicine is a unique reference tool ...
... ILPeople with relatives who have experienced rotator cuff tears are ... a study published in the May 2009 issue of The ... ). "This strongly suggests genetic predisposition as a possible cause ... professor of orthopaedic surgery, University of Utah School of Medicine ...
Cached Biology News:Publication sets guidelines across cancer therapies: Ensuring the best in patient management 2Rotator cuff tears: Are they all in the family? 2
Epi-Grids™ Colony Grid Templates are easy-to-use griding templates that allow rapid organization of colonies from initial screening plates and for preparing precise master plates....
Request Info...
Request Info...
Request Info...
Biology Products: