Nanostructures Open Promise to More Efficient LEDs
LEDs are known to be very efficient in saving power, but can they be developed to become even more efficient? Nanostructures and an indium nitride (InN) semiconductor could hold promise for improving the efficiency of LEDs, particularly in the green gap, where productivity typically takes a dive. Researchers from the University of Michigan conducted tests at the U.S. Department of Energy's National Energy Research Scientific Computing Center using the Cray XC30 supercomputer. They discovered that the semiconductor, which traditionally emits IR radiation, can also emit green light when reduced to 1 nm-wide wires. "If we can get green light by squeezing the electrons in this wire down to a nanometer, then we can get other colors by tailoring the width of the wire," said EmmanouilKioupakis, a physics professor at Michigan who carried out the study. More on the story at Photonics.