Light-emitting Diode Current Events | Light-emitting Diode News
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Scientists break light modulation speed record -- twice
Researchers have constructed a light-emitting transistor that has set a new record with a signal-processing modulation speed of 4.3 gigahertz, breaking the previous record of 1.7 gigahertz held by a light-emitting diode. view more (2009-06-16)
Diode laser could be vital for safeguarding aircraft
Terrorists can strike anywhere, at any time, and aircraft, both military and civilian, are targets for heat-seeking missiles, one of many tactics in use by groups hostile to the United States. view more (2006-09-01)
New materials for high efficiency organic solid state lighting
A new organic molecule developed by Pacific Northwest National Laboratory scientists may significantly improve the efficiency of organic solid state lighting. Direct conversion of electricity to light in "solid state" thin films of organic molecules occurs in organic light emitting devices which can be far more efficient than... view more... (2006-03-30)
New technology will allow for flexible television and computer screens
Organic light emitting diodes (OLED) are the technology used in making light emitting fabrics used in cell phones and televisions. view more (2006-05-12)
Researchers generate hydrogen without the carbon footprint
A greener, less expensive method to produce hydrogen for fuel may eventually be possible with the help of water, solar energy and nanotube diodes that use the entire spectrum of the sun's energy, according to Penn State researchers. view more (2008-07-16)
New coating is virtual black hole for reflections
Researchers have created an anti-reflective coating that allows light to travel through it, but lets almost none bounce off its surface. At least 10 times more effective than the coating on sunglasses or computer monitors, the material, which is made of silica nanorods, may be used to channel light into solar cells or allow more photons to surge... view more... (2007-03-05)
Novel nano-etched cavity makes leds 7 times brighter
Researchers at the National Institute of Standards and Technology (NIST) have made semiconductor light-emitting diodes (LEDs) more than seven times brighter by etching nanoscale grooves in a surrounding cavity to guide scattered light in one direction. view more (2006-07-24)
A bright future for plastics -- robot 'skin,' flexible laptops and electric posters
With market analysts predicting a ten fold increase in the value of the organic light emitting display industry, from £1.5 billion to £15.5 billion, by 2014, it is no wonder that scientists and governments alike are keen to advance research into "plastic electronics". view more (2008-07-01)
Highlights from Opto and Laser Europe, July 2000
Consultants and suppliers question train signal claims Claims made by the UK's rail operator Railtrack that its signal lights conform to the International Commission on Illumination's (CIE) recommendations have been questioned by its signal suppliers and external technical consultants. The allegations follow a story in last month's issue (OLE June... view more... (2000-06-23)
Tiny infrared laser holds promise as weapon against terror
The difficulty of detecting the presence of explosives and chemical warfare agents (CWAs) is once again all too apparent in the news about the London bombings. view more (2005-08-08)
Cornell researchers develop virus-size 'nanolamps' that could aid use of flexible electronic devices as sensors
To help light up the nanoworld, a Cornell interdisciplinary team of researchers has produced microscopic "nanolamps" — light-emitting nanofibers about the size of a virus or the tiniest of bacteria. view more (2007-04-12)
SRI International and Showa Denko K.K. Announce Breakthrough Performance in Organic Light-Emitting Diode (OLED) Devices for Solid-State Lighting Applications
SRI International, an independent nonprofit research institute, and Showa Denko K.K. (SDK), a Japan-based chemical industry company in partnership with Itochu Plastics Inc. (CIPS), have achieved record-breaking results using SRI's new cavity organic light-emitting diode (COLED) technology and SDK's light-emitting polymers to produce a highly... view more... (2009-07-29)
Growing Quantum Dots
Now physicists need not fully control the growth of laser crystals, because the crystals grow themselves. Professor Nikolay Ledentsov and his team at the Ioffe Physico-Technical Institute have learned how to provide special conditions in which crystals can grow defectless. Growing crystals with... view more... (2002-09-09)
Bright idea illuminates LED standards
The lack of common measurement methods among light-emitting diode (LED) and lighting manufacturers has affected the commercialization of solid-state lighting products. view more (2008-11-26)
Shadow technique improves measurement of micro holes
Sometimes seeing a shadow can be as good or better than seeing the real thing. A new measurement method developed by researchers working at the National Institute of Standards and Technology (NIST) is a case in point view more (2005-06-02)
Squid 'sight': Not just through eyes
It's hard to miss the huge eye of a squid. But now it appears that certain squids can detect light through an organ other than their eyes as well. view more (2009-06-02)
University of Miami physicist develops battery using new source of energy
Researchers at the University of Miami and at the Universities of Tokyo and Tohoku, Japan, have been able to prove the existence of a "spin battery," a battery that is "charged" by applying a large magnetic field to nano-magnets in a device called a magnetic tunnel junction (MTJ). view more (2009-03-12)
Growing glowing nanowires to light up the nanoworld
The nano world is getting brighter. Nanowires made of semiconductor materials are being used to make prototype lasers and light-emitting diodes with emission apertures roughly 100 nm in diameter-about 50 times narrower than conventional counterparts. view more (2006-05-26)
NIST method may help optimize light-emitting semiconductors
Physicists at JILA have demonstrated an ultrafast laser technique for "seeing" once-hidden electronic behavior in semiconductors, which eventually could be useful in more predictable design of optoelectronic devices, including semiconductor lasers and white light-emitting diodes. view more (2006-02-17)
RC-LEDs - Super-fast light sources suitable for data transfer
Resonance-cavity light-emitting diodes (RC-LEDs) are a new type of light source which produces very intense light from quantum wells located in a microcavity. As light sources, RC-LEDs are classified as something between laser diodes and conventional light-emitting diodes (LEDs). The advantages of RC-LEDs compared with conventional LEDs include a... view more... (2000-02-25)
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