The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany, concentrated photovoltaic (CPV) system maker Soitec of Bernin, France, micro/nanotechnology R&D center CEA-Leti in Grenoble, France and the Helmholtz Zentrum Berlin ...
Tags: Fraunhofer ISE Leti Soitec CPV Helmholtz, Electrical, Electronics
The Chinese Academy of Sciences’ Research and Development Center for Semiconductor Lighting has been exploring the effect of p-type doping of the barriers in multiple quantum well blue-green (~500nm) light-emitting diode (LED) ...
Tags: Blue-Green LEDs, Electronics
Researchers in South Korea and USA have been developing graded-composition superlattice electron-blocking layers (GSL-EBLs) for nitride semiconductor light-emitting diodes (LEDs) [Jun Hyuk Park et al, Appl. Phys. Lett., vol103, p061104 ...
Tags: LED, droop GaN EBL, Electrical, Electronics, nitride semiconductor
Researchers based in the USA and Korea have found "an unequivocal correlation between the onset of high injection and the onset of the efficiency droop" of gallium indium nitride (GaInN) light-emitting diodes (LEDs) [David S. Meyaard et al, ...
Tags: LED, Nitride LED, Electrical, Electronics
Researchers in China and Turkey have been using varying-thickness gallium nitride (GaN) barriers between indium gallium nitride (InGaN) multiple quantum wells (MQWs) to improve hole distributions and thus to reduce efficiency droop effects ...
Tags: InGaN LEDs, Electrical, Electronics
Researchers in China have been developing nanopatterned-sapphire substrates (NPSS), achieved with nano-sphere lithography (NSL), as a basis for the production of superior aluminium gallium nitride (AlGaN) semiconductor material for deep ...
Tags: DUV LEDs, LED, Electrical, Electronics
Osram Opto Semiconductors GmbH of Regensburg, Germany says that, even at high temperatures and high currents, its new MicroSideled 3806 ensures stable light conditions on the display. The brightness of the light-emitting diode, which is ...
Tags: Osram, LED, Semiconductors
15,000 hours of constant output for portable device displays with MicroSideled 3806 Even at high temperatures and high currents the MicroSideled 3806 from Osram Opto Semiconductors ensures stable light conditions on the display. The ...
Tags: Osram-LEDs, Display Backlighting
In an industry project with concentrating photovoltaic (CPV) solar system maker Soitec of Bernin, France, Fraunhofer Institute for Solar Energy Systems (ISE) in Freiburg, Germany is developing a new generation of multi-junction solar cells ...
Tags: solar cells, Electrical, Electronics
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 ...
Working with the US Army Research Laboratory (ARL), Crystal IS Inc of Green Island, NY, USA, which makes ultraviolet light-emitting diodes (UVC LEDs) grown pseudomorphically (strained) on aluminum nitride (AlN) substrates, has achieved more ...
Working with the US Army Research Laboratory (ARL), Crystal IS Inc of Green Island, NY, USA, which makes ultraviolet light-emitting diodes (UVC LEDs) grown pseudomorphically (strained) on aluminum nitride (AlN) substrates, has achieved more ...
Tags: Germicidal LEDs, UVC LEDs, Electrical, Electronics
Yole Développement announced today its new report “UV LEDs: Technology & Application Trends” which presents UV LED new applications and associated market metrics for the period 2012-2020, and a deep analysis of UV LED ...
Tags: UV LEDs, lighting industry, UV curing
Due to UV curing, UV LEDs should become a $270m business by 2017, and could hit $300m if new applications boom, according to a report ‘UV LEDs: Technology & Application Trends’ from market research firm Yole Développement ...
Taiwan researchers have used a self-textured oxide mask (STOM) as a template to enhance the external quantum efficiency (EQE) of nitride 380nm ultraviolet (UV) light-emitting diodes (LEDs) by up to 83% [Kun-Ching Shen et al, IEEE Electron ...
Tags: LED light, LED, LED light extraction