image: This illustration represents an array of horizontally aligned gallium nitride nanowires (yellow) growing along the nanogrooves of an annealed M-plane sapphire substrate (gray) from nickel catalyst nanoparticles (green). This image relates to an article that appeared in the Aug. 19, 2011, issue of Science, published by AAAS. The study, by Dr. D. Tsivion of the Weizmann Institute of Science in Rehovot, Israel, and colleagues was titled, "Guided Growth of Millimeter-Long Horizontal Nanowires with Controlled Orientations." view more
Credit: Image © Science/AAAS