LEDs & OLEDs

Products, Materials + Tools | Oct 05, 2012
Key Milestone Reached in OLED Development: cynora Presents New Flexible Prototype
Key Milestone Reached in OLED Development: cynora Presents New Flexible Prototype cynora today unveiled a new flexible OLED prototype, demonstrating yet again the huge potential of OLED technology. One key aspect that sets organic light-emitting diodes (OLEDs) apart from conventional LEDs, is that they are two-dimensional light sources. Additionally, they are extremely thin. This property makes them ideally suited for lighting systems and flat screen displays. So far, however, OLEDs have only been used in rigid form in these application areas. Read more »
Technology | Dec 07, 2012
Copper, Gold and Tin for Efficient LED Chips
Copper, Gold and Tin for Efficient LED Chips With gold, copper or tin and special galvanizing processes, scientists are improving the function of semi-conductors and making the manufacture of microelectronic systems a child‘s play. Especially the LED industry could profit from this. Read more »
White Paper | Technology | Jan 09, 2013
Scientists Mimic Fireflies to Make Brighter LEDs
Scientists Mimic Fireflies to Make Brighter LEDs The nighttime twinkling of fireflies has inspired scientists to modify a light-emitting diode (LED) so it is more than one and a half times as efficient as the original. Researchers from Belgium, France, and Canada studied the internal structure of firefly lanterns, the organs on the bioluminescent insects’ abdomens that flash to attract mates. The scientists identified an unexpected pattern of jagged scales that enhanced the lanterns’ glow, and applied that knowledge to LED design to create an LED overlayer that mimicked the natural structure. The overlayer, which increased LED light extraction by up to 55 percent, could be easily tailored to existing diode designs to help humans light up the night while using less energy. The work is published in a pair of papers today in the Optical Society’s (OSA) open-access journal Optics Express. Read more »
White Paper | Technology | Jan 30, 2013
New Options for Transparent Contact Electrodes
New Options for Transparent Contact Electrodes Found in flat screens, solar modules, or in new organic light-emitting diode (LED) displays, transparent electrodes have become ubiquitous. Typically, they consist of metal oxides like In2O3, SnO2, ZnO and TiO2 . Read more »
Fundings + Projects | Jan 31, 2013
Public Funded OLED Project So-Light Successfully Concluded
Public Funded OLED Project So-Light Successfully Concluded Eleven leading German OLED companies and research institutions announced the successful completion of the OLED (Organic Light Emitting Diode) related project; So-Light. This € 14.7 m project was supported by the German Ministry of Education and Research (BMBF) over a three and a half year period and addressed the complete value chain, from primary OLED materials through to OLED-lighting applications. Several of the promising innovations created within the project will now be brought to market by the participants of the So-Light project. Read more »
Technology | Feb 11, 2013
New Atomic Layer Deposition Process for Nitride LED Reflector Structures
New Atomic Layer Deposition Process for Nitride LED Reflector Structures Although some groups have developed DBRs for increasing output power of LEDs before, this approach is claimed as the first proposal and demonstration of DBRs grown using ALD rather than electron-beam (EB) evaporation. The advantages of ALD over EB evaporation include better thickness uniformity over large-diameter substrates and thickness control at the atomic level. Read more »
White Paper | Technology | Feb 14, 2013
Cree Sets New R&D Performance Record with 276 Lumen-Per-Watt Power LED
Cree, Inc. delivers another industry first with a barrier-breaking 276 lumen-per-watt white R&D power LED. This significant milestone exceeds Cree’s previous R&D industry record of 254 lumens per watt and demonstrates Cree’s continued commitment to innovate and accelerate the adoption of LED lighting. Read more »
Fundings + Projects | Feb 19, 2013
Organic Electronics - How To Make Contact Between Carbon Compounds and Metals
Organic Electronics - How To Make Contact Between Carbon Compounds and Metals Organic electronics has already hit the market in smartphone displays and holds great promise for future applications like flexible electroluminescent foils (a potential replacement for conventional light bulbs) or solar cells that convert sunlight to electricity. A reoccurring problem in this technology is to establish good electrical contact between the active organic layer and metal electrodes. Organic molecules are frequently used also for this purpose. Until now, however, it was practically impossible to accurately predict which molecules performed well on the job. They basically had to be identified by trial-and-error. Now, an international team of scientists around Dr. Georg Heimel and Prof. Norbert Koch from the HZB and the Humboldt University Berlin has unraveled the mystery of what these molecules have in common. Their discovery enables more focused improvements to contact layers between metal electrodes and active materials in organic electronic devices. Read more »
Technology | Feb 27, 2013
Bluglass Produced p-GaN Films that Meet Industry Benchmark for the First Time
Bluglass Produced p-GaN Films that Meet Industry Benchmark for the First Time Australian clean technology innovator, BluGlass Limited (ASX: BLG) announced today that it has succeeded in producing p-type gallium nitride (GaN) films with industry equivalent electrical properties using its breakthrough low temperature Remote Plasma Chemical Vapour Deposition (RPCVD) technology when grown on top of MOCVD GaN templates. Read more »
Technology | Mar 01, 2013
KIT Demonstrates Light from Silicon Nanocrystal LEDs
KIT Demonstrates Light from Silicon Nanocrystal LEDs ilicon nanocrystals have a size of a few nanometers and possess a high luminous potential. Scientists of KIT and the University of Toronto/Canada have now succeeded in manufacturing silicon-based light-emitting diodes (SiLEDs). They are free of heavy metals and can emit light in various colors. The team of chemists, materials researchers, nanoscientists, and opto-electronic experts presents its development in the “Nano Letters” journal. Read more »
Technology | Apr 03, 2013
Cambridge Invests £1 million to Accelerate GaN-on-Silicon LED Research
Cambridge Invests £1 million to Accelerate GaN-on-Silicon LED Research Gallium nitride has been described as “the most important semiconductor since silicon” and is used in energy-saving LED lighting. A new £1million growth facility will allow Cambridge researchers to further reduce the cost and improve the efficiency of LEDs, with potentially huge cost-saving implications. Read more »
Technology | May 02, 2013
HD Retina, Martini's World Exclusive New LED Light for an Unmatched Color Perception Quality
HD Retina, Martini's World Exclusive New LED Light for an Unmatched Color Perception Quality All truly great inventions, the ones that really have affected the course of history and people’s lives, have changed the context of a world that was not ready to welcome them. Small and large objects have introduced new solutions and unprecedented perspectives that previously only existed in the minds of their creators. They are innovative, surprising, revolutionary products: in a word unexpected. Read more »
Technology | May 08, 2013
Strain Engineering Improves Light Output from Green LEDs
Strain Engineering Improves Light Output from Green LEDs The Chinese Academy of Science reports that researchers in China have used strain engineering to improve the light output power of 530nm green light-emitting diodes (LEDs) by 28.9% at 150mA current injection [Hongjian Li et al, Appl. Phys. Express, vol6, p052102, 2013]. The research was carried out by Chinese Academy of Sciences’ Institute of Semiconductors, Beijing, and University of Hong Kong. Read more »
Technology | May 24, 2013
New Family of Tiny Crystals Glow Bright in LED Lights
New Family of Tiny Crystals Glow Bright in LED Lights Light-emitting diodes, better known as LEDs, offer substantial energy savings over incandescent and fluorescent lights and are easily produced in single colors such as red or green commonly used in traffic lights or children's toys. Developing an LED that emits a broad spectrum of warm white light on par with sunlight has proven tricky, however. LEDs, which produce light by passing electrons through a semiconductor material, often are coupled with materials called phosphors that glow when excited by radiation from the LED. Minuscule crystals that glow different colors may be the missing ingredient for white LED lighting that illuminates homes and offices as effectively as natural sunlight. Read more »
Technology | Jun 04, 2013
MIT Demonstrates New Method for Fine-Tuning Emissions from Quantum Dots
MIT Demonstrates New Method for Fine-Tuning Emissions from Quantum Dots Tiny particles of matter called quantum dots, which emit light with exceptionally pure and bright colors, have found a prominent role as biological markers. In addition, they are realizing their potential in computer and television screens, and have promise in solid-state lighting. New research at MIT could now make these quantum dots even more efficient at delivering precisely tuned colors of light. Read more »
Fundings + Projects | Jun 11, 2013
Cheaper, 'Greener' Lighting with Inkjet-Printed Hybrid Quantum dot OLEDs
Cheaper, 'Greener' Lighting with Inkjet-Printed Hybrid Quantum dot OLEDs To make OLEDs more cheaply and easily, researchers from the University of Louisville in Kentucky are developing new materials and production methods using modified quantum dots and inkjet printing. The team will discuss its work developing more commercially feasible QD-OLED devices at the Conference on Lasers and Electro-Optics (CLEO: 2013) June 9-14 in San Jose, Calif. Read more »
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