Kim Kisslinger, seen here with a focused-ion beam instrument, reduced the InGaN samples to a thickness of just 20 nanometers to prepare them for electron microscopy. From the high-resolution glow of flat screen televisions to light bulbs ...
Tags: Atomic-Scale, LED
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 ...
Osram Opto Semiconductors GmbH of Regensburg, Germany says that it is now offering its mid-power LED Duris P5 in color options. The five new versions have high luminous efficacy from a compact form factor that is already familiar from the ...
Tags: Osram OPTO, LED lamp
Royal Philips Electronics of Eindhoven, The Netherlands claims that it has created the world’s most energy-efficient LED lamp for general lighting applications. Philips researchers have developed a prototype ‘TLED’ lamp ...
In a development that could make the advanced form of secure communications known as quantum cryptography more practical, University of Michigan researchers – supported by the US National Science Foundation (NSF) - have demonstrated a ...
Tags: GaN nanowires, semiconductor processing techniques, semiconductor
Taiwan National Tsing Hua University has been studying ways to improve the modulation performance of high-output-power nitride semiconductor light-emitting diodes (LEDs) [Chien-Lan Liao et al, IEEE Electron Device Letters, published online ...
Tags: GaN InGaN LEDs, LED, Electrical, Electronics, taiwan
Researchers in South Korea have developed a new gold-doping process for graphene transparent conducting layers (TCLs) that improves its adhesion and electrical contact with near-ultraviolet light-emitting diodes (NUV-LEDs) [Chu-Young Cho et ...
Tags: NUV-LEDs GaN Graphene, Electrical, Electronics, LED
A major challenge of in-situ metrology on single-port reactors with small viewport geometries is the combination of curvature measurements (by blue laser) with reflectance measurement at a wavelength of 405nm, says LayTec AG of Berlin, ...
Tags: LayTec, blue laser, reflectance measurement
At the SEMICON China show in Shanghai next week (19-21 March), Shanghai-based dielectric and through-silicon via (TSV) etch tool supplier Advanced Micro-Fabrication Equipment Inc (AMEC) is making its solid-state lighting (SSL) market debut ...
Tags: MOCVD, Electrical, Electronics
Following its proof-of-concept achievement in late 2012, BluGlass Ltd of Silverwater, Australia says that it has produced p-type gallium nitride (GaN) films with industry-equivalent electrical properties using its proprietary ...
Tags: LED device, LED structure, LED
Researchers in Spain have grown high-indium-content indium gallium nitride (InGaN) directly on silicon (Si) substrates [Praveen Kumar et al, Appl. Phys. Express, vol6, p035501, 2013]. The work was carried out at Universidad ...
Tags: InGaN, silicon, Optoelectronics, Microtechnology
Power+Energy Inc (P+E) of Ivyland, PA, USA, which provides palladium-membrane-based hydrogen purifiers for the compound semiconductor and energy industries, says that it recently shipped a PE9000C Series purifier to Jiangxi Lianchuang ...
Every LED maker wants to know the emission wavelength of its final device during metal-organic chemical vapour deposition (MOCVD) growth, says LayTec AG of Berlin, Germany (which makes in-situ metrology systems for thin-film processes, ...
Tags: LED maker, LED, LED structures, lighting
Researchers at University of Notre Dame and Kopin Corp have developed high-performance nitride semiconductor high-electron-mobility transistors (HEMTs) with indium gallium nitride (InGaN) channels [Ronghua Wang et al, Appl. Phys. Express, ...
Tags: semiconductor, high electron mobility transistors, InGaN
Sophia University in Tokyo, Japan, has used nanocolumns of nitride semiconductor to produce different emission color LEDs in a single growth process for what is claimed to be the first time [Katsumi Kishino et al, Appl. Phys. Express, vol6, ...
Tags: Sophia University, LEDs, Sapphire substrates, LEd lighting