2015-06-17

Colombia University Researchers Develop Thin Graphene Lights

Led by Young Duck Kim, a postdoctoral research scientist in James Hone’s group at Columbia Engineering, a team of scientists from Columbia, Seoul National University (SNU), and Korea Research Institute of Standards and Science (KRISS) reported today that they have demonstrated—for the first time—an on-chip visible light source using graphene, an atomically thin and perfectly crystalline form of carbon, as a filament. They attached small strips of graphene to metal electrodes, suspended the strips above the substrate, and passed a current through the filaments to cause them to heat up. The study, “Bright Visible Light Emission from Graphene,” is published in the Advance Online Publication (AOP) on Nature Nanotechnology's website on June 15.
Continue reading
From June 10 to 12 in Amsterdam, GreenTech visitors can explore how the latest-generation LED and sensor solutions from ams OSRAM enhance plant growth, save energy, and promote sustainable farming. At Hall 05, Booth 05.357, attendees will expe... READ MORE

The number of modern applications using 3D sensor technologies is steadily increasing, including ambient sensing for industrial robots, various face recognition applications, object detection, and machine vision. Vertical Cavity Surface Emitti... READ MORE