2009-03-11

Oxford Instruments - TDI unites LED maker develop semi-polar GaN

Group III-nitride materials have been widely used for visible and ultraviolet LEDs and blue, violet laser diodes in the past decade. Most of these optoelectronic devices are typically fabricated on the conventional polar (0001) c-plane oriented substrate materials. Devices grown on the polar substrate orientation suffer undesirable spontaneous and piezoelectric polarization resulting in significant band bending in the quantum well. This reduces radiative recombination efficiency and lowers device performance.
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Daktronics of Brookings, South Dakota, in conjunction with AV integrator Auviso, has manufactured and delivered a high-resolution dvLED display for “Railway Experience Switzerland,” a new rail hall in Luzern, Switzerland. The proje... READ MORE

Signify, the world leader in lighting, today announced a new range Philips Hue smart lighting innovations, designed to give users more ways to personalize and control lighting throughout their homes. The latest additions include wired switches... READ MORE