Brighter, More Resilient LEDs Via New Processing Technique

Brighter and more resilient LEDs can be created via the use of a new processing technique developed by researchers from North Carolina State University. The improvements are achieved by coating the semiconductor material gallium nitride (GaN) with a layer of phosphorus-derived acid.  “By coating polar GaN with a self-assembling layer of phosphonic groups, we were able to increase luminescence without increasing energy input,” states Stewart Wilkins, a PhD student at NC State and lead author of a paper detailing the new work.