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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At InfoComm 2026 in Las Vegas, Daktronics of Brookings, South Dakota, and Grass Valley were presented the rAVe Pubs Best Solution for Large Venue or Live Events Award. The recognition was presented at the show and highlights the companies&rsqu... READ MORE
GreenTech 2026 in Amsterdam once again demonstrated how dynamically the international horticulture industry is evolving. Many discussions centered on solutions for greater energy efficiency, new approaches to plant care, and the growing integr... READ MORE