LED Equipment/Materials – CS Category Only

Monocrystal Supplies 150 Millionth Two-Inch Sapphire Wafer

Monocrystal ofStavropol, Russia, a grower and processor of synthetic Sapphire, announced that the company has supplied its 150-millionth two-inch equivalent (TIE) product. Since its founding in 1999, Monocrystal has changed from a niche sapphire company into a well-established high-volume supplier. The company says it now provides a stable stock of …

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RPI Researchers Demonstrate the Monolithic Integration of an LED and High-Electron-Mobility Transistor on a Gallium Nitride Chip

Researchers from the Smart Lighting Engineering Research Center at Rensselaer Polytechnic Institute report having successfully integrated an LED and a power transistor on the same gallium nitride (GaN) chip. RPI asserts that this technology could eventually enable LED technology that is less expensive to manufacture, significantly more efficient. Ultimately, the …

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Soraa Chosen to Lead DOE ARPA-E Project on Bulk GaN Substrates

Soraa, a pioneer of GaN on GaN solid-state lighting technology, announced that it has been selected by Advanced Research Projects Agency-Energy (ARPA-E) to lead a project on the development of bulk gallium nitride (GaN) substrates. Using GaN as a substrate holds promise for many industries, but has immediate applications for …

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Researchers at Harvard Develop Technique Which Resolves Problems with Ligands in Quantum Dot LEDs

Researchers at Harvard School of Engineering and Applied Sciences (SEAS) have demonstrated a robust architecture for quantum dot-based LEDs. The architecture places quantum dots in an egg-crate-like structure. Quantum dots are very tiny crystals that glow with bright colors when stimulated by an electric current. According to the researchers, QD-LEDs …

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UCSB Researchers Claim to Have Confirmed the Precise Cause of LED ‘Droop’

UC Santa Barbara researchers claim to have found the hotly-debated cause of the phenomenon in which the efficiency of an LED decreases as more power is applied to the LED, also known as “droop” (see related SSL Design editorial for more on the implications in LED lighting). With a new …

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Bridgelux Demonstrates 135 lm/W GaN-on-Silicon LED

Bridgelux Inc. of Livermore, California USA, announced today its first major lab-based development, a demonstration of 135 Lumens per Watt GaN-on-silicon-based LED Technology. GaN-on-silicon LEDs, widely seen as the holy grail of LED production efficiency, have been an elusive goal for the many companies that have pursued them. Bridgelux says …

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Nanosys Reaches Settlement of Patent Infringement Lawsuit Against Nanoco Technologies for Quantum Dot Technology

Nanosys, Inc. reports having reached a settlement in its patent infringement lawsuit against Nanoco Technologies Ltd. The lawsuit claimed that the United Kingdom firm’s quantum dot technology infringes upon five seminal quantum dot patents held by Nanosys. Under the terms of the settlement, Nanoco agreed to terminate its current U.S. …

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