Taiwan’s National Tsing Hua University has developed a method to improve the performance of zinc oxide (ZnO) transparent conductive oxide (TCO) as an electrode for short-wavelength nitride semiconductor light-emitting diodes (LEDs) ...
Tags: zinc oxide, LEDs
Germany's Azzurro Semiconductors AG has reported uniformity measurements for indium gallium nitride (InGaN) light-emitting diodes on large-diameter silicon substrates up to 200mm [Andrea Pinos, etal, Appl. Phys. Express, vol6, p095502, ...
Tags: InGaN Silicon substrates, LED, 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
Jimei University in China has used indium gallium nitride (InGaN) p-type contacts to increase light output power by 45% over a reference device [Wang Min-Shuai and Huang Xiao-Jing, Chin. Phys. B, vol. 22, p086803, 2013]. The researchers ...
Tags: InGaN LEDs MOCVD, LED, Electrical, 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
The company made public today the foundation of its new LED business unit, called "Azzurro LED Technologies", dedicating more resources to migrate the LED industry to GaN-on-Si. The new business unit's strategy is to license Azzurro's ...
Tags: LED, Lights, Lighting, LED Industry
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 based in China and Sweden have proposed fast chemical vapor deposition (CVD) of graphene as a route to more cost-effective transparent conducting layers (TCLs) for nitride semiconductor light-emitting diodes (LEDs) [Xu Kun et ...
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 ...
Mass production of GaN template wafers based on sapphire substrates could free LED manufacturers' MOCVD reactors for more LED production and lower component cost helping drive the deployment of SSL. Hitachi Cable has become the second ...
Tags: Hitachi Cable, GaN-Template LED, Lighting
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
Spending on LED fab manufacturing equipment will decline 9.2% in 2013 as the industry faces weak long-term demand and consolidates manufacturing capacity. According to the SEMI LED/Opto Fab Forecast, spending on LED fab manufacturing ...
Tags: LED Manufacturing Investment, LED fab manufacturing equipment
A $15-million, EU-funded research project will investigate novel ways to build white LEDs that do not require phosphors. A recently launched European research project, codenamed NEWLED, is aiming to develop high-efficiency and ...
Tags: LED Structures, LED, NEWLED project
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
Taiwan’s National Chung Hsing University has used nitride semiconductor growth on gallium nitride nanocolumns and nanoporosity achieved with photoelectrochemical etching to boost the light output power of light-emitting diodes (LEDs) ...
Tags: LEDs, Air-Channels, Nanoporous Structure