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indium gallium nitride
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RIT's Jing Zhang Wins NSF Career Award for Research on UV Photonics
May 18, 2018Jing Zhang, a faculty member at Rochester Institute of Technology, has received a CAREER award from the US National Science Foundation (NSF) for work to develop new, highly efficient ultraviolet light sources. Zhang’s NSF award of ...
Tags: UV LEDs, UV Photonics
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Osram Boosts Efficiency of Green LEDs by 40%
May 18, 2018Osram Opto Semiconductors GmbH of Regensburg, Germany has succeeded in reducing the typical forward voltage by about 600mV to 2.6V (at a power density of 45A/cm2) in its indium gallium nitride (InGaN)-based green direct-emitting LEDs. With ...
Tags: Osram, Green LEDs
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University of Michigan Predicts Incorporating Boron in Ingan Increases LED Efficiency at High Power
Nov 24, 2017Despite revolutionizing illumination, even top-of-the-line nitride LEDs are far from their maximum efficiency when operating at the high power needed for lighting applications. Logan Williams and Emmanouil Kioupakis at the University of ...
Tags: LEDs, LED Efficiency
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Vishay Launches True Green LEDs in 1.6mm X 0.8mm SMD 0603 ChipLED Package
Jun 26, 2017The Optoelectronics group of Vishay Intertechnology Inc of Malvern, PA, USA has launched a new series of true green LEDs in a compact surface-mount 0603 ChipLED package. Measuring 1.6mm by 0.8mm with an ultra-thin 0.55mm profile, the ...
Tags: ChipLED Package, package
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Reducing Laser Diode Optical Leakage with Indium Gallium Nitride Waveguides
Sep 23, 2016Institute of High Pressure Physics (IHPP) and TopGaN Ltd, both of Poland, have been jointly developing indium gallium nitride (InGaN) waveguide structures for use in blue laser diodes (LDs) [Grzegorz Muziol et al, Appl. Phys. Express, vol9, ...
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Indium Gallium Nitride Solar Cells with Positive Temperature Coefficient
Sep 20, 2016Researchers in China have developed indium gallium nitride (InGaN) photovoltaic devices that increase in efficiency with temperature up to 423K [Zhaoying Chen et al, Appl. Phys. Lett., vol109, p062104, 2016]. "The positive efficiency ...
Tags: InGaN solar cells InGaN, MOCVD, positive temperature coefficient
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Indium Gallium Nitride Laser Diode Directly Integrated with Silicon
Sep 9, 2016Researchers in China have achieved continuous wave (cw) lasing at room temperature for indium gallium nitride (InGaN) laser diodes (LDs) grown directly on silicon (Si) [Yi Sun et al, Nature Photonics, 10, p595, 2016]. The team from Suzhou ...
Tags: InGaN Laser diodes, cw, SINANO
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BluGlass Installs Upgraded RPCVD Chamber to Improve Uniformity of Low-Temperature Process
Sep 6, 2016BluGlass Ltd of Silverwater, Australia – which was spun off from the III-nitride department of Macquarie University in 2005 to develop a low-temperature process using remote plasma chemical vapor deposition (RPCVD) to grow materials ...
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Reducing Misfit Dislocations in Green Semi-Polar Light-Emitting Diodes
Aug 26, 2016University of California Santa Barbara (UCSB) in the USA has used limited-area epitaxy (LAE) on semi-polar gallium nitride (GaN) substrates to reduce misfit dislocation (MD) densities in multiple quantum well (MQW) green light-emitting ...
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Monolithic Band-Engineered Semi-Polar White Light-Emitting Diode
Aug 12, 2016University of California Santa Barbara (UCSB) in the USA has developed a monolithic white light-emitting diode (LED) with blue light produced by electrical pumping, and green/'red' by optical pumping from the blue source [S. J. Kowsz et al, ...
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Relaxing Multiple Quantum Wells with Low-Temperature Barriers
Jul 27, 2016South China University of Technology has used low-temperature barriers between indium gallium nitride (InGaN) multiple quantum wells (MQWs) to improve the light output power of light-emitting diodes (LEDs) by 23% to 63.83mW at 65mA [Zhiting ...
Tags: Low-Temperature Barriers, Quantum
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Vishay Launches Mid-Power 365nm UV LED Delivering Long Lifetime in Compact 1.6mm Package
Jul 26, 2016Vishay Intertechnology Inc of Malvern, PA, USA has expanded its offering of mid-power UV LEDs in the 365nm wavelength range with a new device featuring a silicone lens in a compact 1.6mm by 1.6mm by 1.4mm surface-mount package. Designed to ...
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Kingbright Launches Smallest SMD LED, Using 0201 Package
Jul 20, 2016LED maker Kingbright Co LLC City of Industry, CA, USA has launched what it claims is the industry's smallest SMD LED, the HELI-UM series. The 0.65mm x 0.35mm x 0.20mm (0201) footprint of the HELI-UltraMiniature allows it to fit into ...
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Dependence of Efficiency Droop on Carrier Density in Non-Polar Samples
Jul 16, 2016The University of Manchester and the University of Cambridge in the UK have been comparing efficiency droop in low-temperature photoluminescence (PL) experiments on non-polar m-plane and polar c-plane indium gallium nitride (InGaN) quantum ...
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Bluglass Reports Progress on Lumileds and Veeco Collaborations; First Iteration of HC Semitek Collaboration Begun
Jun 23, 2016BluGlass Ltd of Silverwater, Australia – which was spun off from the III-nitride department of Macquarie University in 2005 to develop a low-temperature process using remote plasma chemical vapor deposition (RPCVD) to grow materials ...