Navigation Links
Advance brings low-cost, bright LED lighting closer to reality
Date:7/17/2008

WEST LAFAYETTE, Ind. - Researchers at Purdue University have overcome a major obstacle in reducing the cost of "solid state lighting," a technology that could cut electricity consumption by 10 percent if widely adopted.

The technology, called light-emitting diodes, or LEDs, is about four times more efficient than conventional incandescent lights and more environmentally friendly than compact fluorescent bulbs. The LEDs also are expected to be far longer lasting than conventional lighting, lasting perhaps as long as 15 years before burning out.

"The LED technology has the potential of replacing all incandescent and compact fluorescent bulbs, which would have dramatic energy and environmental ramifications," said Timothy D. Sands, the Basil S. Turner Professor of Materials Engineering and Electrical and Computer Engineering.

The LED lights are about as efficient as compact fluorescent lights, which contain harmful mercury.

But LED lights now on the market are prohibitively expensive, in part because they are created on a substrate, or first layer, of sapphire. The Purdue researchers have solved this problem by developing a technique to create LEDs on low-cost, metal-coated silicon wafers, said Mark H. Oliver, a graduate student in materials engineering who is working with Sands.

Findings are detailed in a research paper appearing this month in the journal Applied Physics Letters, published by the American Institute of Physics.

LEDs designed to emit white light are central to solid-state lighting, semiconducting devices made of layers of materials that emit light when electricity is applied. Conventional lighting generates light with hot metal filaments or glowing gasses inside glass tubes.

The LEDs have historically been limited primarily to applications such as indicator lamps in electronics and toys, but recent advances have made them as bright as incandescent bulbs.

The light-emittin
'/>"/>

Contact: Emil Venere
venere@purdue.edu
765-494-4709
Purdue University
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. China Biologic Products Honored with the Advanced Technology Certification for Foreign-Funded Enterprises
2. Cynosure Introduces Affirm CO2(TM) Workstation for Advanced Ablative Therapy
3. Advanced Life Sciences Announces Collaboration With UK Ministry of Defence on ALS-886
4. U.S. Genomics Awarded $9.1 Million Contract for Development of Advanced Biosensor by the U.S. Department of Homeland Security
5. Video: New, Advanced Therapy Program Helps People Who Stutter Acquire Fluent Speech
6. Will New Technological Advances Offer Fresh Capabilities for Commercialization and Enhance BTL Investments?
7. Ardea Biosciences Advances RDEA806 Into Phase 2a Proof-of-Concept Study for Gout
8. NorthPoint Domain and Boston Medical Center Partner to Apply Advanced Patient Engagement Instruments to Pioneering Cardiac Robotic Surgery Program
9. Advanced Life Sciences Added to Russell Microcap Index
10. Culligan's New Aqua-Cleer Advanced Drinking Water SystemProvides Clean, Quality Water Customized for Every Home
11. SACHEM Launches New Products for High Purity Advanced Ceramic Powders : Avanta AC™ Advanced Ceramics Solutions Offer Unique Advantages over Inorganic Bases in the Manufacture of Advanced Ceramic Nanoparticles
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Advance brings low-cost, bright LED lighting closer to reality
(Date:8/22/2014)... 2014 Research and Markets has ... Enzymes, Kits, & Reagents (Cloning, Epigenetics, PCR, Restriction Digestion, ... their offering. The global molecular biology ... and is expected to grow at a CAGR of ... enzymes, kits, & reagents find applications in a large ...
(Date:8/22/2014)... 2014 Nerium International, the go-to, ... the spotlight again. Nerium will showcase its signature ... Body Contouring Cream to Hollywood’s elite at the ... the 66th Primetime Emmy® Awards. , Developed from ... clinical trials show that NeriumAD night cream dramatically ...
(Date:8/22/2014)... Greenville, SC (PRWEB) August 22, 2014 ... that indisputable acknowledgement is a national disgrace. Furthermore, ... part in establishing the current, deplorable state of ... outlined "5 great mistakes," to merely serve as ... convey the extent of colossal failure(s) that have ...
(Date:8/21/2014)... & Rockville, MD (PRWEB) August 21, 2014 ... (ITI) is making progress in its development of JRC-LAMP-vax, ... Japanese red cedar pollen. Phase IC studies began this ... real solution to hay fever. , The Japanese red ... 35 million people in Japan. Mountain Cedar pollen wreaks ...
Breaking Biology Technology:Global Molecular Biology Enzymes, Kits, & Reagents (Cloning, Epigenetics, PCR, Restriction Digestion, Sequencing) Market - Forecast to 2018 2Global Molecular Biology Enzymes, Kits, & Reagents (Cloning, Epigenetics, PCR, Restriction Digestion, Sequencing) Market - Forecast to 2018 3Nerium International Joins Television’s Biggest Stars at Backstage Creations Giving Suite at the 66th Primetime Emmy Awards 2Nerium International Joins Television’s Biggest Stars at Backstage Creations Giving Suite at the 66th Primetime Emmy Awards 35 Great Mistakes in Healthcare and How to Fix Them by Dr. Ira Williams 2Relief for Allergy Sufferers Finally in Sight: Immunomic Therapeutics Closes in on Treatment for Hay Fever in Japan, U.S. 2Relief for Allergy Sufferers Finally in Sight: Immunomic Therapeutics Closes in on Treatment for Hay Fever in Japan, U.S. 3Relief for Allergy Sufferers Finally in Sight: Immunomic Therapeutics Closes in on Treatment for Hay Fever in Japan, U.S. 4
... HAIFA, Israel, April 14 ES Vascular Ltd. ... approval for its Open Aortic Stapler,(OAS) system for ... repair of AAA and other aortic reconstructions, enabling,commercialization ... on its,proprietary stapling technology, the OAS stapler is ...
... France, April 14 /PRNewswire-FirstCall/,-- Cephalon, Inc. (Nasdaq: ... granted marketing authorization for EFFENTORA(TM), a buccal,tablet formulation ... of,breakthrough cancer pain (BTCP) in adult patients who ... The approval allows Cephalon,to market EFFENTORA in the ...
... HAYWARD, Calif., April 14 Metabolex, Inc., ... development of,proprietary new medicines for the treatment ... Hill has joined the company as chief,financial ... strategic,planning experience to Metabolex, including expertise in ...
Cached Biology Technology:ES Vascular Receives CE Mark for its First Aortic Stapler for End-to-End Anastomosis Between Synthetic Grafts and Aorta During Open Repair of Aortic Aneurysmal and Occlusive Disease 2Cephalon Announces European Commission Approval of EFFENTORA for the Treatment of Breakthrough Cancer Pain 2Cephalon Announces European Commission Approval of EFFENTORA for the Treatment of Breakthrough Cancer Pain 3Cephalon Announces European Commission Approval of EFFENTORA for the Treatment of Breakthrough Cancer Pain 4Metabolex Appoints Donald Hill as Chief Financial Officer 2
(Date:8/21/2014)... aimed at improving the food intake, health and quality ... is among three projects at the University of Waterloo ... Canadian Institutes of Health Research (CIHR). , Professor ... at Waterloo, and a Schlegel research chair in nutrition ... investigate why many Canadians living in long-term care homes ...
(Date:8/21/2014)... that has implications for life in other extreme environments, ... system, LSU Associate Professor of Biological Sciences Brent Christner ... or NSF, this week published a paper confirming that ... 800 meters (2600 feet) beneath the surface of the ... that more than 400 subglacial lakes and numerous rivers ...
(Date:8/21/2014)... heard of the water window? It consists of radiations ... not absorbed by the water in biological tissues. New ... coherent radiations within the water window. These could be ... high-contrast image of the biological samples or to be ... identifies the physical mechanism needed to efficiently generate the ...
Breaking Biology News(10 mins):Grants will fund landmark aging research at Waterloo 2800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 2800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 3800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 4Water window imaging opportunity 2
... forms that have been around since the dinosaurs, could ... because they can simultaneously produce other valuable products such ... Engineers at Oregon State University concede that such technology ... science fiction many of the needed advances have ...
...  MedNet Solutions, a global life sciences technology company specializing ... that the latest version of iMedNet ™ ... EDC is a ground-breaking eClinical solution that makes ... type of research initiative...even very small studies of short ...
... press release is available in German . ... Department of Limnology of the University of Vienna unravels the ... the unexpected biogeochemical complexity of dissolved organic matter locked in ... streams. Their paper, now published in Nature Geoscience , ...
Cached Biology News:Ancient diatoms could make biofuels, electronics and health food -- at the same time 2MedNet Solutions Announces Latest Enhancements To Its iMedNet EDC eClinical Solution 2Alpine glaciers contribute to carbon cycling 2
EDG-1CT (endothelial cell differentiation gene-1, C terminal)...
Mouse Anti-human CD11b/Mac-1alpha, clone LM2/1, Monoclonal Antibody...
Mouse monoclonal [1-N-14] to Adenovirus Type 7 hexon C11 Immunogen: Purified Adenovirus type 7 Specificity: This antibody is specific for Adenovirus type 7 hexon C11....
... Kir2.1 protein. The epitope is specific ... in any other known protein.,SPECIES REACTIVITIES: ... in rabbit, bovine, porcine and guinea ... rat and mouse (17/19 residues) and ...
Biology Products: