Researchers from North Carolina State University have developed a new processing technique that makes light emitting diodes (LEDs) brighter and more resilient by coating the semiconductor material gallium nitride (GaN) with a layer of phosphorus-derived acid.

Recently, the researchers at Purdue University say they have overcome an obstacle to producing low-cost LED lighting. LED lighting is touted as more energy efficient than incandescent lighting and contains no mercury like that found in compact fluorescent lights.