30 Jul '17, 5pm

Team uses nanoparticles for more efficient LEDs [via SmartBrief]

Team uses nanoparticles for more efficient LEDs [via SmartBrief]

The technique involves growing metallic nanoparticles on and below the surface of semiconductors. These nanoparticles increase the efficiency of LEDs in several ways: by acting as ‘antennas’ that turn more of the electricity running through the semiconductor into light; and by helping to reflect light out of the device. “This is a seamless addition to the manufacturing process and that’s what makes it so exciting,” said Michigan Professor Rachel Goldman. “The ability to make 3D structures with these nanoparticles throughout is going to open a lot of possibilities.” While the idea of adding nanoparticles to increase LED efficiency is not new, previous efforts have used expensive metals. A further complication was the need for precise particle size and spacing. Prof Goldman’s team used molecular beam epitaxy to spray multiple layers of metallic elements onto a wafer. An ion ...

Full article: http://www.newelectronics.co.uk/electronics-news/techniqu...

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