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
Researchers in France have developed a monolithic metal-organic vapor phase epitaxy (MOVPE) process for growing indium gallium nitride (InGaN) light-emitting diodes (LEDs) with a multiple quantum well (MQW) light converter [Benjamin ...
Tags: 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 from the universities of California Santa Barbara (UCSB) and of New Mexico (UNM) have demonstrated semipolar nitride semiconductor blue and green laser diodes (LDs) with part of the upper cladding replaced by indium tin oxide ...
Tags: Iii-Nitride Lasers, Electrical
Researchers based in the USA have used a double-heterostructuring based on order-disorder properties of aluminium indium phosphide (AlInP) to produce 'amber-green' light-emitting diodes (LEDs) [Theresa M. Christian et al, J. Appl. Phys., ...
Tags: LEDs, Electrical, Electronics
The deadline to submit project and product entries for the 2014 Lighting Design Awards is fast approaching. Companies have until 6 September to get their entry forms in. The 2013 Lighting Design Awards were a huge success and there has ...
Tags: Lights, Lighting, Electrical, Electronics
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 used laser micromachining to boost light extraction efficiencies of nitride semiconductor light-emitting diodes (LEDs) by up to 46% [Bo Sun et al, J. Appl. Phys., vol113, p243104, 2013]. The team was based at ...
Tags: LED, Laser Sculpting, Electrical, Electronics
Peking University has found that using a pre-strain layer in nitride semiconductor epitaxial structures designed for blue laser diodes (LDs) can reduce the efficiency-sapping quantum-confined Stark effect (QCSE) [Cao Wen-Yu et al, Chin. ...
Researchers in China have developed a silicon dioxide (SiO2) on aluminium oxide (Al2O3) passivation for nitride semiconductor light-emitting diodes (LEDs) that offers more than two orders of magnitude reduced current leakage under reverse ...
As part of its Clean Technology Innovation Program, the Australian Federal Government has awarded BluGlass Ltd of Silverwater, Australia $2,999,255 in funding for its project 'Versatile prototype deposition machine for higher efficiency, ...
Tags: BluGlass RPCVD, Electrical, Electronics
The Chinese Academy of Sciences’ Institute of Semiconductors and Tsinghua University claim “the first proof-of-concept experimental demonstration of the current-driven pyramid array InGaN/GaN core-shell LEDs interconnected with ...
Tags: Pyramid-array LEDs, Graphene Electrodes, GaN, MOCVD