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, announced the availability of see‑through LED window displays for retail stores, convenience stores, gas stations, quick‑serve restaurants and shopping center environments, expanding the company’s o... READ MORE

Daktronics of Brookings, South Dakota, was selected by Bowling Green State University (BGSU) to manufacture and install a new LED video display at Doyt Perry Stadium in Bowling Green, Ohio. The installation will be completed ahead of the fall ... READ MORE