New technique that makes LEDs more efficient developed
new technique that reduces defects in light-emitting diodes (LEDs), thus making it more efficient. LED lighting relies on the gallium nitride (GaN) thin films to create the diode structure that produces light. The new technique now reduces the number of defects in those films by two to three orders of magnitude. "This improves the quality of the material that emits light," said Salah Bedair at the North Carolina State University.