Navigation Links
Dual-color lasers could lead to cheap and efficient LED lighting
Date:5/2/2013

are traditionally 'grown' together layer-by- layer, on an atom-scale, using the so-called epitaxial growth of crystals. Since different semiconductor crystals typically have different lattice constants, layer-by-layer growth of different semiconductors will cause defects, stress, and ultimately bad crystals, killing light emission properties."

It is because of this that current LEDs cannot have different semiconductors within them to generate red, green and blue colours for lighting.

However, recent developments in the field of nanotechnology mean that structures such as nanowires, nanobelts and nanosheets can be grown to tolerate much larger mismatches of lattice structures, and thus allow very different semiconductors to grow together without too many defects.

"Multi-colour light emission from a single nanowire or nanobelt has been realized in the past but what is important in our paper is that we realized lasers at two distinct colours. To physically 'put' together several lasers of different colors is too costly to be useful and thus our proof-of concept experiment becomes interesting and potentially important technologically.

"In addition to being used for solid state lighting and full color displays, such technology can also be used as light sources for fluorescence bio and chemical detection," continued Professor Ning.


'/>"/>

Contact: Michael Bishop
michael.bishop@iop.org
01-179-301-032
Institute of Physics
Source:Eurekalert

Page: 1 2

Related biology technology :

1. New method for enhancing thermal conductivity could cool computer chips, lasers and other devices
2. UCSB Physicists mix 2 lasers to create light at many frequencies
3. CU-Boulder physicists use ultrafast lasers to create first tabletop X-ray device
4. SPIE co-sponsors ICTP Winter College on lasers for science, medicine, and industry
5. Breaking the final barrier: Room-temperature electrically powered nanolasers
6. Microfabrication breakthrough could set piezoelectric material applications in motion
7. Pitt discoveries in quantum physics could change face of technology
8. Nanoparticle electrode for batteries could make grid-scale power storage feasible
9. New magnetic-field-sensitive alloy could find use in novel micromechanical devices
10. Low-cost paper-based wireless sensor could help detect explosive devices
11. Discovery of a dark state could mean a brighter future for solar energy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/29/2014)... 29, 2014  Pomerantz LLP is investigating claims on ... the "Company") (NASDAQ: IPXL).  Such investors are advised to ... or 888-476-6529, ext. 237. The investigation ... directors have violated Sections 10(b) and 20(a) of the ... July 29, 2014, Impax Laboratories, Inc. (the "Company") issued ...
(Date:7/29/2014)... Calif. , July 29, 2014 /PRNewswire-iReach/ -- ... agreement with FORMA Therapeutics, Inc., to provide access ... proprietary fragment-based lead discovery platform for novel small ... excited about the opportunity to work with FORMA ... of epigenetics and protein homeostasis. FORMA Therapeutics, decision ...
(Date:7/29/2014)... (PRWEB) July 29, 2014 TransVac Solutions, ... linen collection and transport solutions for hospitals, will be ... Healthcare Engineering (ASHE) Annual Conference & Technical Exhibition Aug. ... present its technology for making hospitals cleaner, reducing infection ... over the hospital’s life cycle. Staff will be ...
(Date:7/29/2014)... 29, 2014  Sigma-Aldrich Corporation (NASDAQ: SIAL ... increased its investment in Green Chemistry and donated more ... last year, the Company announced Monday in its new ... the World? The report comes in ... being a responsible corporate citizen, including recognition for the ...
Breaking Biology Technology:SHAREHOLDER ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of Impax Laboratories, Inc. - IPXL 2Nanosyn Announces Expanded Partnership With FORMA Therapeutics 2TransVac Presents Cost Saving Technology at ASHE Conference for Keeping Hospitals Cleaner 2Sigma-Aldrich Achieves Record Success in Environmental, Community Initiatives 2Sigma-Aldrich Achieves Record Success in Environmental, Community Initiatives 3
... prescription ... solution, ... new Xtremityscan System and give away a free unit at the ... Xtremityscan is a digital shape acquisition system that allows users ...
... to Create One of the Industry,s Largest eClinical ... ... PAREXEL International,Corporation (Nasdaq: PRXL ), a leading global biopharmaceutical ... plc, a company traded on the London Stock Exchange, ("ClinPhone"),have ...
... June 13 On Thursday, June 19, 2008,at 7:00 ... Time,members of Cell Therapeutics, Inc.,s (CTI) (Nasdaq and MTA: ... of the Annual Meeting,of Shareholders at its Seattle headquarters ... meeting will be webcast live on CTI,s website,at ...
Cached Biology Technology:PAL Health Technologies Debuts Xtremityscan System at Western Podiatric Medical Congress 2PAREXEL Reaches Agreement To Acquire ClinPhone 2PAREXEL Reaches Agreement To Acquire ClinPhone 3PAREXEL Reaches Agreement To Acquire ClinPhone 4PAREXEL Reaches Agreement To Acquire ClinPhone 5Cell Therapeutics, Inc. Special Meeting in Lieu of Annual Meeting of Shareholders Scheduled for Thursday, June 19, 2008 2
(Date:7/29/2014)... Aarhus University researchers have developed an easier method ... strengthen the work involved in diagnosing diseases. , ... provides a strong partnership that can be used ... conjugates which tag proteins with DNA ... sensitive detection and visualisation of biological material. The ...
(Date:7/29/2014)... PARIS, 29 JULY 2014 With thirty days to ... for the FEBS-EMBO 2014 Conference are well underway. The ... Biochemical Societies (FEBS), EMBO, and the French Society for ... Saturday, 30 August to Thursday, 4 September at the ... 2014 Conference is the largest meeting for the life ...
(Date:7/29/2014)... bacteria and algae, propel themselves using whip-like appendages ... a millimetre long, function like tiny oars, helping ... cilia are found on the surfaces of many ... liquids over the cell. , Flagella and ... expel pathogens from our airways, they establish the ...
Breaking Biology News(10 mins):New method provides researchers with efficient tool for tagging proteins 2Counting down to FEBS-EMBO 2014 in Paris, France 2Microscopic rowing -- without a cox 2Microscopic rowing -- without a cox 3
... Fusarium samples. A Virginia Tech plant pathologist ... detect airborne pathogens above agricultural fields. , ... and weed science in the College of Agriculture ... and engineering with his interdisciplinary research but has ...
... common practice among many college students involves "pulling all-nighters", ... practice associated with lower grade-point averages compared to those ... abstract that will be presented Wednesday at SLEEP 2007, ... Societies (APSS). , "Sleep in college students is generally ...
... a microbial protein to improve water quality. , But ... from potentially toxic nanoparticles in their own environments, and ... the same thing on a larger scale. , ... and Lawrence Berkeley National Laboratory found that bacteria from ...
Cached Biology News:Small, self-controlled planes combine plant pathology and engineering 2Small, self-controlled planes combine plant pathology and engineering 3Microbes at work cleaning up the environment 2
Direct ELISA Assay Diluent - EDTA, 10 L...
... Turn routine agarose gel electrophoresis into ... 96 system. This bufferless, pre-cast system is ... preparations, restriction digests, and more. Fully automated, ... the E-Gel 96 system makes your high-throughput ...
SpectroQuest single beam 4nm UV/Vis spectrophotometer; stand-alone unit; large angled LCD screen; large sample compartment...
... Cloning Kit, 40 reactions. Optimized for ... all PCR products with blunt or ... by offering consistently better signal-to-noise ratios ... positive clones.Amplicons generated by proof-reading thermostable ...
Biology Products: